# File Extensions
File types with extensions that start with a number or symbol.
Extension
File Type
File Description
.!ut
Misc
uTorrent Incomplete Download
.$$$
Backup
Temporary File
.$01
Developer
DOS Pipe File
.$db
Backup
dBASE Temporary File
.$er
Data
GroupWise Database
.0
Compressed
Hacha Split Archive File
.0
Game
M3 DS Real Save File
.000
Misc
Windows CE Installation Data File
.000
Disk
Virtual CD ISO File
.000
Compressed
DoubleSpace Compressed File
.001
Image
Fax File
.001
Backup
HJSplit Split Archive
.001
Misc
001 File Manager Split File
.001
Developer
Multimedia Fusion Backup File
.001
Game
Snes9x Slot 2 Saved State
.001
Backup
Norton Ghost Disk Backup
.001
Misc
001 File Joiner & Splitter File
.001
Misc
SplitJoin Split File
.0xe
Executable
F-Secure Renamed Virus File
.113
Backup
Iomega Backup File
.123
Data
Lotus 1-2-3 Spreadsheet
.123
Data
PCB123 Circuit Board Design
.1pe
Data
TurboTax Form File
.1ph
Data
TurboTax File
.1st
Text
Readme File
.256
Settings
Descent 2 Color Palette File
.2bp
Raster Image
Pocket PC Bitmap Image File
.2d
Image
VersaCAD 2D Drawing
.2mg
Disk
Apple IIGS Disk Image
.386
System
Windows Virtual Device Driver
.3d
Image
Stereo CAD-3D Image File
.3d2
Image
Stereo CAD-3D 2.0 Image File
.3d4
3D Image
Stereo CAD-3D 2.0 Image File
.3da
Image
3D Assembly
.3df
3D Image
3D Format
.3dl
3D Image
LightConverse 3D Model File
.3dm
3D Image
Rhino 3D Model
.3dmf
3D Image
QuickDraw 3D Metafile
.3dr
Data
3DMark Results File
.3ds
3D Image
3D Studio Scene
.3dt
Data
3D Topicscape File
.3dv
3D Image
3D VRML World
.3dx
3D Image
Rhino 3D Model File
.3dxml
3D Image
Dassault Systemes 3D XML File
.3g2
Video
3GPP2 Multimedia File
.3gp
Video
3GPP Multimedia File
.3gp2
Video
3GPP Multimedia File
.3gpp
Video
3GPP Media File
.3me
Data
TurboTax Form File
.3mm
Video
3D Movie Maker Movie Project
.3p2
Video
3GPP Multimedia File
.3pe
Data
TurboTax 2008 Form File
.411
Raster Image
Mavica Thumbnail Image
.4db
Developer
4th Dimension Database Structure File
.4dd
Developer
4th Dimension Database Data File
.4dl
Data
4th Dimension Database Log File
.4dv
Data
4D View Ultrasound File
.4mp
Audio
4-MP3 Database File
.60d
Video
CCTV Video Clip
.669
Audio
UNIS Composer 669 Module
.6cm
Audio
Six Channel Module
.7z
Compressed
7-Zip Compressed File
.83p
Misc
TI-83 Calculator File
.8ba
Plugin
Photoshop Plug-in
.8bc
Plugin
Photoshop 5.0 Plug-in
.8be
Plugin
PhotoDeluxe Plug-in
.8bf
Plugin
Filter Factory Image Filter
.8bf
Plugin
Photoshop Filter Plug-in
.8bi
Plugin
Photoshop Plug-in
.8bi8
Plugin
Photoshop Plug-in
.8bl
Plugin
Photoshop Plug-in
.8bs
Plugin
Photoshop 5.0 Selection Plug-in
.8bx
Plugin
PhotoDeluxe Plug-in
.8by
Plugin
PhotoDeluxe Plug-in
.8cm
Audio
Eight Channel Module
.8li
Plugin
Photoshop Scripting Plug-in
.8med
Audio
Amiga OctaMed Music File
.8pbs
Image
Adobe Photoshop Macintosh File
.8st
Settings
8start Launcher File
.8svx
Audio
Amiga 8-Bit Sound File
.8xg
Data
TI-83/84 Plus Group File
.8xi
Raster Image
TI-83/84 Plus Picture File
.8xk
Data
TI-83 Plus Application Upgrade File
.8xp
Misc
TI-83 Plus Calculator File
.8xs
Data
TI-83/84 Plus String File
.8xu
System
TI-83 Plus Operating System File
.8xv
Data
TI-83/84 Plus Variable File
.^^^
Data
Pervasive.SQL Database File
.{pb
Data
Corel WordPerfect Document Index File
.~hm
Data
HostMonitor TestList Backup File
A File Extensions
File types with extensions that start with the letter A.
Extension
File Type
File Description
.a
Developer
Static Library
.a00
Compressed
ALZip Second Split Archive File
.a01
Compressed
ALZip Third Split Archive File
.a02
Compressed
ALZip Fourth Split Archive File
.a2m
Audio
AdLib Tracker 2 File
.a2m
Settings
TS-AudioToMIDI Settings File
.a2w
Developer
Alice World
.a3l
Data
Authorware 3 Library
.a3m
Data
Authorware 3 Macintosh File
.a3w
Data
Authorware 3 Windows File
.a4l
Data
Authorware 4 Library
.a4m
Data
Authorware 4 Macintosh File
.a4w
Data
Authorware 4 Windows File
.a5l
Data
Authorware 5 Library
.a5w
Data
Authorware 5 Windows File
.a65
Data
Authorware 6.5 File
.a6p
Executable
Authorware 6 Program
.aa
Disk
Generic CD Image
.aa
Audio
Audible Audio Book File
.aa3
Audio
ATRAC Audio File
.aac
Audio
Advanced Audio Coding File
.aam
Settings
Authorware Map File
.aao
Data
Agenda At Once File
.aao
Game
America's Army Map File
.aawdef
Misc
Ad-Aware Definitions File
.aax
Audio
Audible Enhanced Audiobook File
.ab
Developer
Applix Builder File
.ab
Data
DNA Sequence File
.ab1
Data
DNA Electropherogram File
.ab2
Data
Print Shop Address Book File
.ab3
Data
PhotoImpact 3 Album File
.aba
Backup
Palm Address Book Archive
.aba
Plugin
Avant Browser Add-on File
.abbu
Backup
Address Book Backup
.abc
Developer
ABC Source File
.abc
Audio
ABC Music Notation
.abcd
Data
AudioVisual Book Data File
.abf
Font
Adobe Binary Screen Font File
.abi
Data
DNA Chromatogram File
.abk
Backup
Automatic Backup File
.abk
Game
Arena Opening Book File
.abk
Game
Need for Speed Underground Audio File
.abm
Audio
Music Album
.abm
Raster Image
Photo Album
.abp
Data
AVS Barcode Profile
.abr
Misc
Adobe Photoshop Brushes File
.abw
Text
AbiWord Document
.aby
Data
AOL Address Book File
.ac
Executable
Autoconf Script
.ac$
Misc
AutoCAD Temporary File
.ac3
Audio
Audio Codec 3 File
.ac5
Image
ArtCut 5 Document
.ac6
Image
ArtCut 6 Document
.aca
Data
Agent Character Animation File
.acb
Misc
AOL Cab Launcher
.acc
Data
Graphics Accounts Data File
.accdb
Data
Access 2007 Database File
.acd
Audio
ACID Project File
.acd
Developer
RSLogix 5000 Program
.ace
Compressed
WinAce Compressed File
.acf
Data
Agent Character Data File
.acfm
Font
Adobe Composite Font Metrics File
.acg
Data
Agent Preview File
.acl
Misc
AutoCorrect List File
.acm
Audio
Interplay Audio File
.acr
Backup
Acer eRecovery Management Backup File
.acr
Image
American College of Radiology Format
.acr
Executable
ACRobot Script
.acrobatsecuritysettings
Settings
Adobe Acrobat Security Settings File
.acrodata
Settings
Acrobat Data File
.acs
Misc
Agent Character File
.acsm
Misc
Adobe Content Server Message File
.act
Text
FoxPro Documenting Wizard Action
Diagram
.act
3D Image
Genesis3D Actor File
.act
Audio
ADPCM Compressed Audio File
.action
Executable
Automator Action
.acx
Game
Atari ST Program
.ad
Misc
After Dark Screensaver
.ada
Developer
Ada Source Code
.adb
Developer
Ada Body File
.adb
Developer
Alpha Five Database File
.adc
Image
Scanstudio 16 Color Image
.add
Misc
Dynamics AX Developer Documentation File
.ade
Data
Access Project Extension
.adf
Disk
Amiga Disk File
.adg
Audio
Ableton Device Group
.adi
Misc
Dynamics AX Developer Documentation
Index File
.adi
Image
AutoCAD Device-Independent Binary Plotter
File
.adm
Misc
Portfolio Admin-Level Access Flag
.adm
System
Administrative Template File
.adp
Data
Access Project
.adr
Web
Opera Bookmarks File
.ads
Developer
Ada Specification File
.adt
Text
AutoCAD Audit Log
.adt
Data
ACT! Document Template
.adx
Data
Approach Index File
.adz
Disk
Compressed Amiga Disk File
.aea
Settings
Ae Timer Alarm Document
.aep
Developer
Activ E-Book Project
.aep
Video
After Effects Project
.aex
Web
Alpha Five Compiled Global Functions File
.afc
Audio
Mass Effect 2 Audio File
.afm
Font
Adobe Font Metrics File
.afp
Encoded
FileProtector Encrypted File
.afp
Page Layout
Advanced Function Presentation File
.afploc
Misc
Apple Filing Protocol Location
.afs
Data
STAAD.foundation Project File
.aft
Data
Ancestry.com Family Tree Database
.afx
Raster Image
Auto FX Photo/Graphic Edges Image
.agd
Data
AgileGraph Data File
.agd
Misc
Agile Advantage E-mail Attachment
.agi
Developer
Asterisk Gateway Interface File
.agif
Raster Image
Active GIF Creator Project
.agm
Audio
DTS Multi-channel Pro Packer File
.agp
Raster Image
ArtGem Project File
.ahd
Misc
Dynamics AX Online Help Data File
.ahi
Misc
Dynamics AX Online Help Index File
.ahk
Executable
AutoHotkey Script
.ahl
Settings
eMule Metadata File
.ahs
Settings
Adobe Halftone Screen File
.ahx
Audio
WinAHX Tracker Module
.ai
Vector Image
Adobe Illustrator File
.aic
Raster Image
Advanced Image Coding File
.aif
Audio
Audio Interchange File Format
.aif
Misc
Symbian Application Information File
.aifb
Data
AIF Builder Project File
.aifc
Audio
Compressed Audio Interchange File
.aiff
Audio
Audio Interchange File Format
.aim
Text
AIMMS ASCII Model File
.aim
Misc
AOL Instant Messenger Launch File
.ain
Compressed
AIN Compressed File Archive
.aip
Plugin
Illustrator Plug-in
.air
Executable
Adobe AIR Installation Package
.ais
Audio
Velvet Studio Instrument
.ais
Raster Image
ACDSee Image Sequence File
.ait
Settings
Adobe Illustrator Template
.ajp
Video
CCTV Video File
.akp
Audio
Akai Sampler File
.al
Audio
A-Law Compressed Sound Format
.alaw
Audio
A-Law Compressed Sound Format
.alb
Developer
Alpha Five Library
.albm
Raster Image
HP Photo Printing Software Album File
.alc
Data
Dynamics AX Label Description File
.ald
Data
Dynamics AX Application Label Data File
.ali
Data
Dynamics AX Label Index File
.all
Audio
Cubasis Project File
.alt
Misc
Dynamics AX Temporary File
.alx
Settings
BlackBerry Application Loader XML File
.alx
Web
ActiveX Layout Control File
.alz
Compressed
ALZip Archive
.am1
Game
Adventure Maker
.am4
Developer
AutoPlay Media Studio 4 Project File
.am5
Developer
AutoPlay Media Studio 5 Project File
.am6
Developer
AutoPlay Media Studio 6 Project
.am7
Developer
AutoPlay Media Studio 7 Project
.amb
Data
AIMMS Model File
.amf
Audio
Advanced Module File
.amfm
Font
Adobe Multiple Font Metrics File
.amr
Audio
Adaptive Multi-Rate Codec File
.ams
Settings
Adobe Monitor Setup file
.ams
Audio
Velvet Studio Module
.ams
Audio
Extreme Tracker Module
.amsorm
Data
OnLine Ringman Auction Client File
.amu
Image
Sony Photo Album
.amv
Video
Anime Music Video File
.amx
Video
Adobe Motion Exchange File
.amx
Plugin
AMX Mod Plugin File
.amxx
Plugin
AMX Mod X Plugin File
.amz
Music
Amazon MP3 Downloader File
.an1
Data
Street Atlas USA Draw File
.an2
Game
Croc Legend of the Gobbos Animation File
.an8
3D Image
Anim8or File
.ani
System
Windows Animated Cursor
.anm
3D Image
3D Animation File
.anme
Data
Anime Studio Project
.ann
System
Help Annotations
.ans
Text
ANSI Text File
.aob
Audio
DVD-Audio Audio Object File
.aod
Misc
Dynamics AX Object Data File
.aoi
Misc
Dynamics AX Application Object Index File
.aol
Misc
America Online File
.aos
System
ARCHOS PCtablet Firmware File
.ap
Web
Active Page
.apa
Developer
RSView Development Project Archive
.ape
Audio
Monkey's Audio Lossless Audio File
.ape
Plugin
AVS Plugin Effects File
.apf
Audio
Sony Ericsson Firmware Acoustics File
.apf
Misc
Adobe Profile File
.api
Plugin
Acrobat Plug-in
.apk
Executable
Android Package File
.apm
Raster Image
Aldus Placeable Metafile Image
.apng
Raster Image
Animated Portable Network Graphic
.app
Executable
Mac OS X Application
.app
Executable
FoxPro Generated Application
.app
Executable
Symbian OS Application
.applescript
Executable
AppleScript File
.application
Settings
ClickOnce Deployment Manifest File
.appref-ms
Settings
Microsoft Application Reference File
.apr
Data
ArcView Project File
.apz
Compressed
Autoplay Media Studio Exported Project
.ar
Compressed
Unix Static Library
.arc
Compressed
Compressed File Archive
.arc
Data
Nintendo Archive File
.arc
Game
African Safari Data File
.arch00
Game
F.E.A.R. Game Archive
.ard
3D Image
ArtiosCAD Workspace File
.arf
Video
WebEx Advanced Recording File
.arh
Compressed
ProTool Compressed Project File
.arh
Data
ArheoStratigraf Project File
.ari
Compressed
ARI Compressed File Archive
.arj
Compressed
ARJ Compressed File Archive
.ark
Compressed
PowerDesk Pro Archive
.arl
Settings
AOL Organizer File
.aro
Web
SteelArrow Web Application File
.arp
Settings
Advanced RAR Password Recovery Setup
.arr
Image
Amber Graphic File
.arr
Misc
Advanced RAR Password Recovery Project
.art
Raster Image
AOL Compressed Image File
.art
Vector Image
Art Document
.art
Developer
Artifacts Artifact File
.artproj
Developer
Artifacts Project
.artwork
Raster Image
ArtStudio Image
.arw
Raster Image
Sony Digital Camera Image
.arw
Raster Image
ArtStudio Image
.as
Developer
ActionScript File
.as4
Backup
askSam Backup File
.asa
Web
ASP Configuration File
.asat
3D Image
Assemble SAT 3D Model File
.asc
Developer
ActionScript Communication File
.asc
Text
Autodesk ASCII Export File
.asc
Text
ASCII Text File
.ascii
Text
ASCII Text File
.ascx
Web
Active Server Custom Control
.asd
Backup
Word AutoSave File
.ase
Text
Autodesk ASCII Scene Export File
.ase
Audio
Velvet Studio Sample
.asf
Video
Advanced Systems Format File
.ashx
Web
ASP.NET Web Handler File
.asi
Developer
Alpha Five Variable File
.ask
Data
askSam Database
.asl
Settings
Photoshop Style
.asm
Data
Pro/ENGINEER Assembly File
.asm
Developer
Assembly Language Source Code File
.asm
Data
Solid Edge Assembly File
.asmx
Web
Active Server Method File
.asnd
Data
Adobe Sound Document
.asp
Web
Active Server Page
.aspx
Web
Active Server Page Extended File
.asr
Web
ActionScript Remote Document
.ast
Settings
Adobe Color Separations Table
.ast
Data
ClarisWorks Assistant File
.aswcs
Settings
Avast! Compressed Skin File
.asws
Settings
Avast! Skin File
.asx
Video
Microsoft ASF Redirector File
.at3
Audio
ATRAC3 Audio File
.at5
Data
Lowrance Map File
.atf
Settings
Photoshop Transfer Function File
.atn
Settings
Photoshop Actions File
.atom
Web
Atom Syndication Format
.atr
Disk
Atari Disk Image
.atrac
Audio
Sony ATRAC Audio File
.att
Data
Alphacam Lathe Tool File
.att
Web
Web Form Post Data File
.atx
Plugin
Animation Master Plugin File
.aty
Text
Association Type Placeholder
.atz
Settings
Aston Compiled Theme
.atz
Misc
Atomic Time Zone File
.au
Audio
Audio File
.au3
Developer
AutoIt v3 Script
.aud
Audio
Video Game Compressed Audio File
.aup
Audio
Audacity Project File
.aut
Developer
AutoIt Script File
.avb
Video
Avid Bin File
.avi
Video
Audio Video Interleave File
.avl
Misc
ArcView Legend File
.avr
Audio
Audio Visual Research File
.avs
Settings
AVS Preset File
.avs
Video
Application Visualization System File
.avs
Video
AviSynth Script File
.avx
Plugin
ArcView Extension File
.aw
Data
Answer Wizard File
.awb
Audio
AMR-WB Audio File
.awc
Misc
Emulex AWC Firmware Update File
.awd
Image
FaxView Document
.awd
Raster Image
Artweaver Document
.awd
Misc
Award BIOS Update File
.awg
Data
Activeworlds Object Group File
.awk
Executable
AWK Script
.ax
Plugin
DirectShow Filter
.axd
Web
ASP.NET Web Handler File
.axm
Video
AXMEDIS Object
.axp
Settings
CDBurnerXP Audio Compilation File
.axx
Compressed
AxCrypt Encrypted File
.azw
Data
Amazon Kindle eBook File
.azz
Data
AZZ Cardfile Database File
B File Extensions
File types with extensions that start with the letter B.
Extension
File Type
File Description
.b
Developer
BASIC Source File
.b2a
Encoded
Btoa Encoded File
.b5i
Disk
BlindWrite 5 Disk Image
.b5t
Disk
BlindWrite 5 Disc Track Information File
.b64
Compressed
Base64 MIME-Encoded File
.b6i
Disk
BlindWrite 6 Disc Image
.b6t
Disk
BlindWrite 6 Track Information File
.ba
Compressed
Scifer External Header Archive
.bac
Backup
Backup File
.backupdb
Backup
Time Machine Backup Folder
.bad
Text
Exchange Badmail File
.bafl
Data
BurnAware File List
.bak
Backup
Firefox Bookmarks Backup
.bak
Backup
Backup File
.band
Audio
GarageBand Project File
.bap
Audio
Blaze Audio Wave Information File
.bar
Game
Age of Mythology Data File
.bar
Game
Age of Empires III Data File
.bas
Developer
BASIC Source Code File
.bat
Executable
DOS Batch File
.bau
Settings
OpenOffice.org AutoText File
.bav
Plugin
AVG Anti-Virus The Bat! Plugin File
.bb
Developer
Blitz Source Code File
.bbc
Developer
BBC BASIC Data File
.bbs
Text
Bulletin Board System Text
.bc
Misc
BitComet Partially Downloaded File
.bc!
Misc
BitComet Incomplete File
.bcc
Data
Calendar Creator File
.bcf
Page Layout
Business Card Designer Pro File
.bci
Data
Belarc Advisor Report File
.bck
Backup
VMX Backup File
.bckp
Backup
Ad-Aware Quarantined File
.bcm
Backup
Microsoft Works Communications Script Backup
.bcm
Data
Business Contact Manager File
.bcmx
Settings
Business Contact Manager Customization
.bcp
Developer
Borland C++ Makefile
.bcp
Settings
BlackMagic Custom Palette
.bcp
Page Layout
Business Card Designer Plus File
.bdb
Backup
Microsoft Works Database Backup File
.bdd
Audio
CARA Sound Radiation Data File
.bdf
Font
Glyph Bitmap Distribution Format
.bdf
Disk
MIDAS BDF Disk Image File
.bdf
Data
Binary Data File
.bdic
Data
Chrome Dictionary File
.bdl
3D Image
CoCreate Bundle File
.bdm
Video
AVHCD Information File
.bdmv
Video
Blu-ray Disc Movie Information File
.bdp
Text
Exchange Diagnostic Message
.bdr
Text
Exchange Non-Delivery Report Body File
.bdr
Misc
Publisher Borders File
.bean
Text
Bean Rich Text Document
.bet
Developer
BETA Source File
.bfa
Encoded
Blowfish Encrypted File
.bfc
Misc
Windows Briefcase File
.bfx
Data
Bitware Fax Document
.bgi
Settings
BgInfo Configuration File
.bgl
Data
Babylon Glossary File
.bgt
Data
Graphics Accounts Data File
.bh
Compressed
BlakHole Archive
.bhx
Encoded
BinHex Encoded File
.bib
Text
Bibliography Document
.bib
Text
BibTeX Bibliography Database
.bic
Game
Civilization 3 Scenario
.bif
Disk
Boot Information File
.big
Game
Electronic Arts Game Data File
.bik
Game
Video Game Movie File
.bik
Video
BINK Video File
.bin
Executable
Unix Executable File
.bin
Disk
CDRWin CD Image
.bin
Game
Sega Genesis Game ROM
.bin
Data
Generic Binary File
.bin
Encoded
Macbinary Encoded File
.bin
Game
Nintendo DS Binary File
.bin
Video
Binary Video File
.bio
System
BIOS File
.bip
3D Image
Character Studio Biped File
.biq
Game
Civilization 3 Scenario
.bix
Game
Civilization 3 Scenario
.bix
Video
Kodicom Video File
.biz
Page Layout
Broderbund Business Card File
.bjo
Data
TablEdit Tablature File
.bk
Data
FrameMaker Book File
.bkc
Backup
Backup4all Backup Catalog
.bkf
Backup
Windows Backup Utility File
.bkk
Data
BookBuddi eBook File
.bkp
Backup
Backup File
.bks
Backup
Microsoft Works Spreadsheet Backup File
.bks
Settings
NTBackup Settings File
.blb
Data
Blob Data File
.bld
Data
Envisioneer Building Project File
.blend
3D Image
Blender 3D Data File
.blg
Data
Windows Binary Performance Log File
.blkrt
Raster Image
Block Artist Image File
.blob
Settings
Valve Steam Archive
.blp
Game
Blizzard Texture File
.bls
Game
Blockland Saved Game File
.blt
Settings
AIM Buddy List
.blu
Plugin
FileMaker Pro Runtime Extension
.blz
Image
Compressed Bitmap Graphic
.bmc
Image
Embroidery Image File
.bmc
Image
Bitmap Cache File
.bmd
Game
GameCube 3D Model File
.bme
Game
BeatMania 7-Key Song File
.bmf
Raster Image
Binary Material File
.bmf
3D Image
FloorPlan File
.bmk
Video
PowerDVD MovieMark File
.bmk
System
Help Bookmarks
.bml
Web
Bean Markup Language File
.bmp
Raster Image
Bitmap Image File
.bms
Game
BeatMania Song File
.bna
Text
Barna Word Processor Document
.bnd
Misc
DB2 CLI Bind File
.bnk
Game
Test Drive Unlimited Data Package
.boc
Text
EasyWord Big Document
.bok
Data
TestGen Testbank File
.bok
Web
ProStores Dynamic Web Page
.bom
System
Mac OS X Bill of Materials File
.boo
Compressed
Booasm Compressed Archive
.boot
Settings
InstallShield Boot File
.bootskin
Misc
Stardock Bootskin File
.box
Video
Kodicom Video
.box
Audio
CARA Loudspeaker Design File
.box
Data
E-mail Mailbox
.bp2
Misc
AutoCAD Batch Plot File
.bp3
Misc
AutoCAD Batch Plot File
.bpa
Backup
StorageSync Backup Archive
.bpb
Backup
PowerDesigner Business Process Backup File
.bpg
Developer
Borland Project Group
.bpl
Misc
AutoCAD Batch Plot File
.bpl
Developer
Borland Package Library
.bpm
Backup
PowerDesigner Business Process Model
.bps
Backup
Works Document Backup
.br3
3D Image
Bryce 3 Scene File
.br4
3D Image
Bryce 4 Scene File
.br5
3D Image
Bryce 3D Scene File
.brd
Data
EAGLE Circuit Board File
.brk
Raster Image
Brooktrout Fax Document
.bro
Page Layout
CreataCard Brochure Project
.bro
3D Image
Broadleaf Tree Model
.brw
Data
Calyx Point Borrower File
.bs2
Developer
BASIC Stamp 2 Code File
.bs4
Video
Mikogo Session Video Recording
.bsa
Game
Bethesda Softworks Archive
.bsb
Game
BioShock Saved Game File
.bsf
Video
Blu-ray AVC Video File
.bsp
Game
Valve Game Map File
.bst
Misc
BibTeX Style Document
.btf
Data
NationsBank Check Images
.btif
Data
NationsBank Check Image File
.btm
Data
BizTalk Map File
.btoa
Encoded
Binary-to-ASCII Encoded File
.btr
Data
Btrieve Database File
.btw
Page Layout
BarTender Label
.buf
Misc
Buffer File
.bun
Audio
Cakewalk Bundle File
.bundle
Plugin
Mac OS X Application Plug-in
.bup
Backup
Backup File
.bup
Backup
DVD IFO Backup File
.bvh
3D Image
Biovision Hierarchy Animation File
.bwa
Disk
BlindWrite Disk Information File
.bwf
Audio
Broadcast Wave File
.bwi
Disk
BlindWrite CD/DVD Disc Image
.bws
Disk
BlindWrite Sub Code File
.bwt
Disk
BlindWrite 4 Disk Image
.bxx
Settings
BS Contact Parameter File
.byu
Video
Brigham Young University Movie
.bz
Compressed
Bzip Compressed File
.bz2
Compressed
Bzip2 Compressed File
.bzip
Compressed
Bzip Compressed Archive
.bzip2
Compressed
Bzip2 Compressed Archive
.bzw
Game
BZFlag World File
C File Extensions
File types with extensions that start with the letter C.
Extension
File Type
File Description
.c
Developer
C/C++ Source Code File
.c
Developer
Lite-C Script
.c00
Compressed
WinAce Split Archive File
.c01
Audio
Typhoon Wave Audio File
.c01
Compressed
WinAce Split Archive Part 1 File
.c02
Compressed
WinAce Split Archive Part 1 File
.c2d
Disk
WinOnCD Disc Image
.c2r
Settings
Windows Media Center Click-To-Record File
.c4
Raster Image
JEDMICS Image File
.c4d
3D Image
Cinema 4D Model File
.ca
Misc
Initial Telnet Cache
.cab
System
Windows Cabinet File
.cache
Misc
Cache File
.cad
3D Image
BobCAD-CAM File
.caf
Audio
Core Audio File
.cag
Image
Clip Art Gallery
.cal
Raster Image
CALS Raster Graphic
.cal
Page Layout
Calendar File
.calb
Misc
Coolect Album File
.cals
Raster Image
CALS Raster Graphic File
.cam
Misc
Gerber CAM Job File
.cam
Image
Casio Digital Camera Picture
.camp
Settings
WCS Color Appearance Model Profile File
.camrec
Video
Camtasia Studio Screen Recording
.can
Raster Image
Canon Navigator Fax Document
.cap
Developer
Construct Game Development File
.cap
Data
Packet Capture File
.car
Compressed
CAR Archive
.cat
Data
Advanced Disk Catalog Database
.catpart
Image
CATIA V5 Part Document
.catproduct
3D Image
CATIA 5 Assembly File
.cav
Data
Comodo Virus Definitions File
.cb7
Compressed
Comic Book 7-Zip Archive
.cbf
Game
ChessBase Game Information File
.cbf
Page Layout
Calendar Builder File
.cbg
Data
CyberGauge Data File
.cbk
Backup
Backup Configuration File
.cbl
Developer
COBOL Program
.cbr
Compressed
Comic Book RAR Archive
.cbt
Misc
Computer Based Training File
.cbt
Compressed
Comic Book TAR File
.cbz
Compressed
Comic Book ZIP Archive
.cc
Developer
C++ Source Code File
.ccd
Disk
CloneCD Disk Image
.ccf
Encoded
CryptLoad Container File
.cch
Data
Corel Chart File
.ccn
Developer
Compressed Multimedia Fusion File
.ccr
Data
ASTM Continuity of Care Record
.cct
Data
Director Protected Cast Resource
.ccx
Plugin
Click & Create Extension
.cd
Developer
Visual Studio Class Diagram
.cd
Disk
CD-i OptImage
.cd2
Page Layout
Click'N Design 3d File
.cd5
Raster Image
Chasys Draw Image File
.cda
Audio
CD Audio Track Shortcut
.cdb
Data
CardScan Contacts Database
.cdb
Data
Symbian Phonebook Database
.cdb
Data
Pocket Access Database
.cdd
Data
ConceptDraw Drawing File
.cdf
Data
Content Definition File
.cdf
Web
Channel Definition Format
.cdf
Data
Common Data Format
.cdg
Raster Image
Compact Disc Plus Graphics Image
.cdi
Disk
DiscJuggler Disc Image
.cdl
3D Image
CADKEY Wireframe Design File
.cdp
Game
Trainz Simulator Content Dispatcher Pack
.cdp
Data
CD/Spectrum Pro File
.cdp2
Game
Trainz Classics Content Dispatcher Pack 2
.cdr
Audio
Raw Audio CD Data
.cdr
Vector Image
CorelDRAW Image File
.cdr
Data
Crash Data Retrieval Data File
.cdt
Settings
CorelDRAW Image Template
.cdx
Data
Compound Index File
.cdx
Vector Image
CorelDRAW Compressed File
.ce
Image
Computer Eyes Image
.ceb
Misc
Apabi eBook File
.cel
Audio
Audition Loop
.cel
Image
MicroStation Cell Library
.cel
Data
Battery 3 Drum Cell File
.celtx
Data
Celtx Project File
.cer
Web
Internet Security Certificate
.cfg
Settings
Citrix Server Connection File
.cfg
Settings
Configuration File
.cfge
Game
Jewel Quest Configuration File
.cfl
Misc
IMVU Product File
.cfm
Web
ColdFusion Markup File
.cgf
Game
Far Cry Model File
.cgi
Executable
Common Gateway Interface Script
.cgm
Vector Image
Computer Graphics Metafile
.cgp
Encoded
PixelCryptor Encrypted File
.cgr
Settings
Quest3D Channel Group File
.cgz
System
Linux Drivers Archive
.cgz
Game
AssaultCube Map File
.ch3
Page Layout
Harvard Graphics DOS Chart File
.cha
Settings
Photoshop Channel Mixture
.cha
Font
Character Layout File
.cha
Web
Online Chat Configuration File
.charset
Text
Character Set
.chat
Web
Online Chat Configuration File
.chg
Data
Quicken Online Data File
.chk
Data
InterCheck Checksum Database
.chk
Game
StarCraft Chunk File
.chk
Misc
Saved File Fragment
.chl
Settings
WinFast PVR2 Channel List
.chm
Web
Compiled HTML Help File
.chml
Encoded
Chameleon Encrypted Database File
.chn
Data
Ethnograph Data
.chord
Text
Song Chords File
.chr
Font
Borland Character Set
.cht
Game
SNES Cheat File
.chw
Misc
Compiled Help Index File
.cidb
Audio
iTunes CD Information File
.cif
Disk
Easy CD Creator Disk Image
.cil
Image
ClipArt Gallery Packaged File
.cin
Raster Image
Kodak Cineon Bitmap File
.cit
Raster Image
Intergraph Bitmap Image File
.ck9
Backup
Cook'n Cookbook Backup File
.ckd
Data
Kubotek Design Container
.ckt
Data
CircuitMaker File
.cl2
Data
HY-TEK Meet Results File
.cl4
Data
Easy CD Creator 4 Project File
.cl5
Disk
Easy CD Creator 5 Saved Project
.class
Developer
Java Class File
.clb
Data
ICQ Contact List
.clb
System
COM+ Catalog File
.cld
Page Layout
Canon CD Label Template
.clg
Data
Collage Maker Project File
.clg
Settings
Windows Catalog File
.clix
Data
CLIX Command File
.clk
Data
Corel R.A.V.E Project File
.clkk
Misc
Clicker Keyboard
.clkt
Misc
Clicker Template
.clkw
Misc
Clicker Word Bank
.clkx
Misc
Clicker Grid Set
.clm
Data
MagicJack Call Log File
.clm
Data
GenePattern CEL Descriptor File
.clp
Data
Windows Clipboard File
.clpi
Video
Blu-ray Clip Information File
.clr
Settings
CryptLoad Router Information File
.clr
Misc
Flash Color Set
.cls
Developer
Program Class File
.clx
Encoded
Ceelox SecureMail Secure Message
.cm
Game
CLEO Custom Mission
.cm
Settings
Cable Modem Configuration File
.cm2
3D Image
Poser Camera Set File
.cmbl
Data
Logger Pro Data File
.cmd
Executable
Windows Command File
.cmf
Audio
Creative Music Format
.cmm
Misc
Corel Multimedia Manager Album
.cmp
3D Image
Solid Edge Wire Harness File
.cmp
Vector Image
Generic CADD Component File
.cms
Web
Content Management System
.cmx
Vector Image
Corel Metafile Exchange Image File
.cmz
3D Image
Compressed Poser Camera Set File
.cna
Data
Catena Project File
.cnc
Misc
CNC Machine Tool Path
.cnf
Settings
Telnet Configuration File
.cnt
System
Help Contents File
.cnv
Vector Image
Canvas 6-8 Drawing File
.cob
Developer
COBOL Source Code File
.cod
Developer
Compiled Source Code
.col
Game
Grand Theft Auto Collision File
.colorpicker
Plugin
Color Picker Plugin
.com
Executable
DOS Command File
.comicdoc
Page Layout
Comic Life Document
.component
Plugin
Mac OS X System Component
.con
Web
Concept Application Source File
.conf
Settings
Unix Configuration File
.config
Developer
Configuration File
.contact
Data
Windows Contact File
.copy
Audio
Sony Ericsson Protected Content File
.cor
Data
Trimble Corrected SSF File
.cox
Plugin
Click & Create Extension
.cp
Developer
Captivate Source File
.cp
Developer
Xcode C++ Source File
.cp3
Misc
Grand Prix 3 Cockpit Shape File
.cp9
Compressed
ChoicePoint Encrypted File
.cpc
Raster Image
CPC Compressed Image File
.cpd
Raster Image
Compressed PhotoDefiner Image File
.cpg
Raster Image
Manga Studio Page File
.cpg
Game
StarCraft Campaign File
.cpgz
Compressed
Compressed CPIO Archive
.cph
Page Layout
Corel Print House File
.cpi
System
Codepage Information File
.cpi
Video
AVCHD Video Clip Information File
.cpio
Encoded
Unix CPIO Archive
.cpl
System
Windows Control Panel
.cpmz
Data
Miradi/ConPro Project File
.cpp
Developer
C++ Source Code File
.cpr
Audio
Cubase Project
.cps
Raster Image
Corel Photo House File
.cpt
Misc
Pocket Slides Presentation
.cpt
Encoded
Ccrypt Encrypted Archive
.cpt
Audio
DTS Compact Audio File
.cpt
Compressed
Compact Pro Archive
.cpt
Image
Corel Photo-Paint Document
.cpx
Raster Image
Corel CMX Compressed File
.cpx
Settings
Oracle ADF Binding Context File
.cpx
Game
Rise of Rome Campaign File
.cpy
Page Layout
eCopy Desktop File
.cr2
3D Image
Poser Character Rigging File
.cr2
Raster Image
Canon Raw Image File
.crash
System
Mac OS X Crash Log File
.crc
Misc
Total Commander Checksum File
.crd
Text
Guitar Tabs
.crd
Data
Windows Cardfile
.crt
Web
Security Certificate
.crtx
Data
Office 2007 Chart Template File
.crw
Raster Image
Canon Raw CIFF Image File
.crwl
Text
Windows Crawl File
.crx
Plugin
Chrome Extension
.crz
3D Image
Compressed Poser Character Rigging File
.cs
Developer
C Sharp Source Code File
.cs
Game
CLEO Custom Script
.csa
Data
PNA Code Calset File
.csd
Page Layout
Compact Shared Document
.csf
Raster Image
Content Secure Format
.csf
Settings
Photoshop Color Settings
.csh
Executable
C Shell Script
.csh
Misc
Photoshop Custom Shapes File
.csh
Audio
Cubase Waveform File
.csi
Developer
ContentServ Include File
.csi
Developer
EdLog Program Data File
.csm
3D Image
Character Studio Marker File
.cso
Disk
Compressed ISO Disk Image
.csp
Web
Concept Server Page
.csproj
Developer
Visual Studio C# Project
.csr
Web
Certificate Signing Request File
.css
Web
Cascading Style Sheet
.cst
Developer
ContentServ Template
.csv
Data
Comma Separated Values File
.ct
Raster Image
Scitex Continuous Tone File
.ct
Game
Cheat Engine Cheat Table
.ctb
Settings
AutoCAD Color-Based Plot Style File
.ctf
Misc
AVG Update Control File
.ctf
Data
WhereIsIt Catalog
.ctf
Misc
Content Transformation File
.ctg
Misc
Canon Digital Camera Catalog File
.ctl
Developer
Visual Basic UserControl Object File
.ctm
Data
CrazyTalk Model File
.ctm
Game
Star Wars Republic Commando Map File
.ctp
Developer
CakePHP Template
.ctt
Data
Messenger Contact List
.ctx
Developer
Visual Basic Control Binary File
.cty
Game
SimCity City File
.cue
Disk
CDRWin Cue Sheet
.cue
Disk
Cue Sheet File
.cui
Settings
AutoCAD Custom Workspace File
.cur
System
Windows Cursor
.cursorfx
Data
CursorFX Theme File
.curxptheme
Data
CursorXP Theme File
.cut
Image
Dr. Halo Bitmap Image File
.cv5
Vector Image
Canvas 5 Drawing File
.cva
Settings
HP Systems Software Manager Information File
.cvc
Video
cVideo
.cvd
Data
ClamAV Virus Definitions File
.cvg
Vector Image
Calamus Vector Graphic File
.cvi
Vector Image
Canvas Image Format
.cvi
Raster Image
CassiniVision Map Image File
.cvn
Data
CineVision Encoding Session
.cvs
Vector Image
Canvas 4 Drawing File
.cvx
Vector Image
Canvas 9 Image File
.cwf
Settings
CorelDRAW Workspace File
.cwk
Data
ClarisWorks Document
.cwp
Audio
Cakewalk SONAR Project
.cws
Data
Claris Works Template
.cwz
Data
Circuit Wizard File
.cxt
Data
Director Protected Cast File
.cyi
Text
Clustify Input File
.cyo
Data
Clustify Output File
.cys
Data
Clustify Summary File
.cyw
Executable
Rbot.CYW Worm File
D File Extensions
File types with extensions that start with the letter D.
Extension
File Type
File Description
.d
Developer
D Source Code File
.d00
Audio
OPL2 FM Audio File
.d01
Audio
OPL2 FM Audio File
.d2v
Video
DVD2AVI File
.d3v
Video
Datel Video File
.d64
Disk
Commodore 64 Disk Image
.d88
Disk
Toshiba Pasopia 7 Disk File
.da0
Backup
Windows Registry Backup File
.daa
Disk
PowerISO Direct-Access-Archive
.dae
3D Image
Digital Asset Exchange File
.daf
Data
Digital Anchor File
.dal
Misc
Download Accelerator Plus URL List
.dal
Data
DVD-lab Project File
.dam
Data
DeltaMaster Analysis Model
.dao
Disk
Disk at Once CD/DVD Image
.dap
Web
Access Data Access Page
.dap
Misc
Download Accelerator Plus Partial Download
.dar
Compressed
DAR Disk Archive
.das
Data
DeltaMaster Analysis Session
.dat
Video
VCD Video File
.dat
Misc
Exchange E-mail Attachment
.dat
Data
Data File
.data
Data
Analysis Studio Offline Data File
.dav
Video
DVR365 Video File
.dax
Disk
PSP Compressed ISO Disc Image
.db
Data
Database File
.db
Game
X-Ray Engine Database
.db
Misc
Windows Thumbnail Cache
.db2
Data
dBASE II Database
.db3
Data
SQLite Database File
.dba
Backup
Palm Datebook Backup File
.dbb
Settings
Skype User Information File
.dbc
Data
FoxPro Database
.dbd
Data
DemoShield Project
.dbf
Data
FoxPro Table
.dbf
Data
Database File
.dbg
Settings
FoxPro Debugger Configuration
.dbk
Backup
dBASE Database Backup
.dbk
Backup
Sony Ericsson Mobile Phone Backup File
.dbm
Web
ColdFusion Server File
.dbo
Developer
DarkBASIC Object
.dbt
Text
Database Text File
.dbv
Misc
Database Variable Field
.dbx
Data
Visual FoxPro Table
.dbx
Misc
Outlook Express E-mail Folder
.dc
3D Image
DesignCAD Design File
.dc1
Misc
Bloomba E-mail Message
.dc4
Encoded
ViaThinkSoft (De)Coder 4 File
.dcd
Encoded
DisCryptor Encrypted Database
.dcd
3D Image
DesignCAD Drawing
.dce
Video
DriveCam Video
.dcf
Encoded
DisCryptor Encrypted Archive
.dcf
Disk
Disk Copy Fast Disk Image File
.dcf
Audio
DRM Content Format File
.dcf
Data
Document Computation Format
.dck
Video
Resolume Deck File
.dcl
Data
DumpSec Report File
.dcm
Data
DiskCatalogMaker Catalog File
.dcm
Raster Image
DICOM Image File
.dcm
Audio
DCM Audio Module
.dcmd
Data
DiskCatalogMaker Thumbnail-Enabled Catalog
.dco
Encoded
DisCryptor Encrypted Virtual Disk Archive
.dcp
Developer
Delphi Compiled Package
.dcr
Raster Image
Kodak RAW Image File
.dcr
Web
Shockwave Media File
.dcs
Vector Image
Desktop Color Separation File
.dct
Text
FoxPro Database Memo
.dct
Misc
Dictionary File
.dct
Audio
Dictation Audio File
.dctmp
Misc
DC++ Partially Downloaded File
.dcu
Developer
Delphi Compiled Unit
.dcx
Misc
FoxPro Database Index
.dcx
Raster Image
Zsoft Multi-Page Paintbrush File
.dcx
Page Layout
FAXserve Fax Document
.dd
Compressed
DiskDouber Archive
.ddat
Video
DivX Temporary Video File
.ddb
Raster Image
Device Dependent Bitmap
.ddc
Data
DivX Descriptor File
.ddcx
Data
DivX Descriptor 2 File
.ddf
Settings
Diamond Directive File
.ddrw
Image
ClarisDraw Drawing
.dds
Raster Image
DirectDraw Surface
.ddt
Game
Football Manager Keep Player Data File
.ddt
Data
Diagram Designer Template
.ddt
Audio
Jill of the Jungle Music File
.deb
Compressed
Debian Software Package
.dec
Developer
Declaration File
.def
Developer
Module-Definition File
.def
Developer
SmartWare II Data File
.dek
Executable
Eavesdropper Batch File
.dek
Misc
Memorize-It Flashcard Deck
.dem
Data
Digital Elevation Model
.dem
Game
Video Game Demo
.des
3D Image
Corel Designer File
.des
Data
QuickBooks Forms Template
.des
3D Image
Pro/DESKTOP CAD File
.design
Vector Image
Microsoft Expression Design Drawing
.desklink
System
Desktop Shortcut
.desktop
Misc
Desktop Entry File
.dev
Developer
Dev-C++ Project File
.dev
System
Windows Device Driver File
.dewf
Audio
SoundEdit Recorded Instrument
.dex
Developer
Dalvik Executable File
.dex
Data
Excel Spreadsheet
.dex
Data
DEXIS Digital X-ray File
.df1
Developer
Omnis Native Datafile
.df2
Audio
Defractor 2 Instrument
.dfc
Audio
Defractor Instrument
.dff
3D Image
RenderWare Model File
.dfm
Developer
Delphi Form
.dfm
Data
Midas ViewPoint Display Form
.dfont
Font
Mac OS X Data Fork Font
.dfp
Plugin
Fusion Plugin File
.dfproj
Data
DVD Flick Project
.dft
Data
Solid Edge Draft Document
.dfx
3D Image
Drafix CAD File
.dgb
Data
FlashCAD Drawing Database
.dgc
Compressed
DGCA File Archive
.dgc
Misc
TurboTax Tax Form
.dgn
Vector Image
MicroStation Design File
.dgs
Text
Dagesh Pro Document
.dhtml
Web
Dynamic HTML file
.dib
Raster Image
Device Independent Bitmap File
.dic
Misc
Dictionary File
.dicproof
Settings
Microsoft Dictionary Proofing File
.dif
Video
Digital Interface Format
.dif
Data
Data Interchange Format
.dig
Audio
Digilink Audio File
.dig
Audio
Sound Designer Audio File
.dii
Data
Summation Batch Load File
.dim
Encoded
DIME File
.dime
Encoded
Direct Internet Message Encapsulation File
.dinfo
Settings
DivX Temporary Video Info File
.dir
Video
Adobe Director Movie
.directory
Settings
KDE Folder View Properties File
.disco
Web
DISCO Discovery Document
.discomap
Web
DISCO Discovery Output File
.disk
Disk
Linux Virtual Hard Disk
.diskdefines
Misc
Linux LiveCD Information File
.dist
Compressed
Mac OS X Distribution Script
.divx
Video
DivX-Encoded Movie File
.diz
Text
Description in Zip File
.djm
Data
Dynojet Map File
.djv
Raster Image
DjVu Image
.djvu
Raster Image
DjVu Image
.dke
Misc
DriveLock FDE Disk Key File
.dl
Game
Zoo Tycoon 2 Data File
.dlc
Encoded
Download Link Container File
.dld
Executable
EdLog Compiled Program
.dlg
Data
Digital Line Graph
.dll
System
Dynamic Link Library
.dll
Web
DLL Dynamic Web Page
.dlm
Misc
Akamai Download Manager File
.dlo
Plugin
3ds Max Plug-in
.dls
Audio
Downloadable Sounds File
.dlv
3D Image
CATIA 4 Export File
.dm
Audio
DRM Delivery Message
.dm2
Data
Toad Data Modeler 2 File
.dm2
Game
Quake 2 Demo File
.dmb
Video
Digital Multimedia Broadcasting File
.dmc
Executable
Medical Manager Script
.dmf
Audio
Delusion Digital Music File
.dmg
Disk
Mac OS X Disk Image
.dml
Web
DynaScript File
.dmo
Data
Derive Demo
.dmo
Data
Movienizer Database File
.dmp
System
Windows Memory Dump
.dms
Disk
Disk Masher Image
.dms
Game
Dream Maker Script
.dmsa
Audio
Music Disc Creator Project File
.dmse
Audio
Sound Editor Project File
.dmsk
Data
DivX Temporary Video Data File
.dmsm
Video
VideoWave Movie Project File
.dmsp
Data
PhotoSuite Project File
.dmss
Video
VideoWave SlideShow Project File
.dm_82
Game
Wolfenstein 1.00 Demo Movie File
.dm_83
Game
Wolfenstein 1.02 Demo Movie File
.dm_84
Game
Wolfenstein 2.06 Demo Movie File
.dna
Backup
CA Backup and Migration Backup File
.dnc
Video
Windows Dancer File
.dnc
Data
Dance Database File
.dne
Text
Netica Text File
.dng
Raster Image
Digital Negative Image File
.dnl
Misc
DNAML eBook File
.do
Web
Java Servlet
.dob
Developer
Visual Basic UserDocument
.doc
Text
Word Document
.doc
Text
WordPad Document
.dockzip
Data
ObjectDock File
.docm
Text
Word Open XML Macro-Enabled Document
.docx
Text
Word Open XML Document
.dol
Game
Gamecube Executable File
.dolphinview
Settings
Dolphin Folder View Settings File
.dot
Page Layout
Word Document Template
.dotm
Text
Word Open XML Macro-Enabled Document Template
.dotx
Text
Word Open XML Document Template
.dov
Backup
Temp File
.download
Web
Partially Downloaded File
.downloadhost
Settings
MSN Download Settings File
.dox
Text
MultiMate Document
.dox
Developer
Doxygen Documentation File
.dox
Developer
Visual Basic Binary UserDocument
.dp1
Data
DataPower Database File
.dpb
Misc
FaxMaster Document
.dpd
Page Layout
Ovation Pro File
.dpg
Video
Nintendo DS Movie File
.dpk
Developer
Delphi Package
.dpl
Developer
Delphi Package Library
.dpm
Plugin
Pro Tools Plugin File
.dpn
Data
Depiction Data File
.dpp
Vector Image
DrawPlus Drawing File
.dpr
Vector Image
Digital InterPlot File
.dpr
Developer
Delphi Project
.dps
Settings
DivX Player 2 Skin File
.dpx
Data
VASCO DIGIPASS File
.dpx
Raster Image
Digital Picture Exchange File
.dqy
Misc
Excel Query File
.dr
Misc
DRM Rights Object
.drc
Misc
DRM Rights Object
.dream
Video
Dream Animated Wallpaper File
.drg
Audio
I-Doser Audio Drug File
.drl
Data
Gerber Drill Rack File
.drm
Settings
Cubase Drum Map File
.drv
System
Device Driver
.drw
Vector Image
DESIGNER Drawing
.drw
Vector Image
Drawing File
.drwdot
Vector Image
SolidWorks Drawing Template
.ds
Executable
TWAIN Data Source
.dsb
Data
Orchida Embroidery File
.dsc
Misc
CoolPix Disk Identification File
.dsd
Data
Diet Studio Data File
.dsf
Audio
Delusion Digital Sound File
.dsf
Vector Image
Designer File
.dsk
Disk
Disk Image
.dsk
Developer
Borland Project Desktop File
.dsk
Data
Simple IDs Database
.dskin
Misc
DockX Skin
.dsm
Audio
Digital Sound Module
.dsn
Settings
Database Source Name File
.dsp
Audio
Dynamic Studio Professional Module
.dsp
Developer
Developer Studio Project
.dss
Audio
Digital Speech Standard File
.dss
System
DCC Active Designer File
.dst
Misc
Embroidery Format
.dstudio
Misc
DownloadStudio Incomplete Download
.dsv
Text
DeSmuME Save File
.dsw
Settings
Visual C++ Workspace File
.dsy
Data
Directory Synchronizer Project File
.dsy
Video
Besta Video File
.dsym
Developer
Xcode Debug Symbols File
.dsz
Data
Orchida (OES) Embroidery File
.ds_store
Settings
Mac OS X Folder Settings File
.dt0
Data
DTED Level 0 File
.dt1
Data
DTED Level 1 File
.dt2
Raster Image
Windows Live Messenger Emoticon Image File
.dt2
Data
DTED Level 2 File
.dta
Data
Chain Engineering Database
.dtd
Developer
Document Type Definition File
.dtd
Data
Design Tools Draw File
.dtm
Audio
DigiTrakker Module
.dtp
Page Layout
Publish-iT Document
.dtr
Data
DATroniC Data Recording
.dts
Audio
DTS Encoded Audio File
.dtshd
Audio
DTS-HD Master Audio File
.dtw
Raster Image
Desktop Wallpaper
.dt_
Misc
Macintosh Data Fork
.dus
Misc
Readiris Font Dictionary
.dv
Video
Digital Video File
.dvd
System
DOS Device Driver
.dvd
Disk
CloneCD DVD Information File
.dvdproj
Data
iDVD Project File
.dvf
Audio
Sony Digital Voice File
.dvi
Text
Device Independent Format File
.dvl
Raster Image
Virtual Library File
.dvo
Data
Cook'n Cookbook File
.dvr-ms
Video
Microsoft Digital Video Recording
.dvx
Video
DivX Video File
.dwc
Misc
Emulex DWC Firmware Update File
.dwd
Audio
DiamondWare Digital Audio File
.dwf
3D Image
Design Web Format File
.dwfx
3D Image
Design Web Format XPS File
.dwg
3D Image
AutoCAD Drawing Database File
.dwi
Data
Dance With Intensity Song File
.dwn
Misc
Firmware Update File
.dwp
Data
DarkWave Studio Project File
.dwt
Web
Dreamweaver Web Page Template
.dwz
Data
Ulead DVD MovieFactory Project File
.dx
Text
DEC WPS Plus File
.dxb
Vector Image
Drawing Exchange Binary
.dxf
3D Image
Drawing Exchange Format File
.dxp
Settings
CDBurnerXP Data Disc Compilation File
.dxr
Video
Protected Macromedia Director Movie
.dxs
Game
Deus Ex Saved Game
.dyc
System
Xerox Printer Driver Configuration File
.dylib
Developer
Mach-O Dynamic Library
E File Extensions
File types with extensions that start with the letter E.
Extension
File Type
File Description
.e00
Data
ArcInfo Coverage Export File
.e4a
Encoded
Encrypt4all Archive
.eap
Data
Enterprise Architect Project
.ear
Audio
Eyemail Audio Recording
.ebm
Executable
EXTRA! Basic Macro
.ebn
Misc
Philips Firmware Update File
.ebuild
Data
Portage eBuild Script
.ec0
Data
MetroCount Traffic Data File
.ece
Web
Escenic Dynamic Web Page
.ecf
Plugin
Outlook Add-in
.ecf
Executable
SageCRM Component File
.eco
Data
ECCO Database File
.ecs
Compressed
Sony Ericsson Phone Backup File
.ecx
Data
ECCO Corrupted Database File
.eda
Disk
Ensoniq ASR Disk Image
.edb
Data
Exchange Information Store Database
.ede
Disk
Ensoniq EPS Disk Image
.edf
Data
Estimator Data File
.edf
Data
ESRF Data File
.edfx
Data
Estimator.NET Estimate File
.edk
Disk
Ensoniq KT Disk Image
.edq
Disk
Ensoniq SQ1/SQ2/KS32 Disk Image
.edrw
3D Image
SolidWorks eDrawings File
.eds
Disk
Ensoniq SQ-80 Disk Image
.edv
Disk
Ensoniq VFX-SD Disk Image
.eep
Data
EEPROM Data File
.efa
Audio
Ensoniq ASR File
.efe
Audio
Ensoniq EPS File
.efk
Audio
Ensoniq KT File
.efl
Misc
External Format Language File
.efl
Encoded
Encryptafile Encrypted File
.efq
Audio
Ensoniq SQ1/SQ2/KS-32 File
.efr
Encoded
Encryptafile Private Key File
.efs
Audio
Ensoniq SQ-80 File
.eftx
Settings
Office 2007 Theme Effect File
.efu
Encoded
Encryptafile Public Key File
.efv
Audio
Ensoniq VFX-SD File
.efw
Compressed
Renamed Zip or Executable File
.efx
Data
eFax Document
.egg
3D Image
Panda3D Model File
.egm
Game
Enigmo Custom Game File
.egp
Data
Easy Grade Pro Gradebook File
.eix
Game
Metin2 Game Data File
.elf
Game
PlayStation 2 Game Data
.elf
Executable
Playstation Executable File
.elf
Executable
Nintendo Wii Game File
.email
Text
Outlook Express Email Message
.emb
Data
Embroidery Design File
.emb
Data
Everest Embedded Bank File
.emd
Audio
ABT Extended Module
.emd
Data
ChessBase Tablebase
.emerald
System
Emerald Theme
.emf
Vector Image
Enhanced Windows Metafile
.eml
Misc
Outlook Express Saved Mail Message
.emlx
Text
Mail Message
.emlxpart
Data
Mail Message Attachment
.emp
Audio
eMusic Playlist File
.emulecollection Text
eMule Data File
.emx
Audio
eMusic Download File
.emz
Image
Windows Compressed Enhanced Metafile
.enc
Page Layout
Copysafe Protected PDF File
.enc
Encoded
Encoded File
.enc
Data
Electronic Navigation Chart File
.eng
Game
Chess Engine
.ent
Developer
External Entity
.env
Settings
WordPerfect Environment
.enw
Data
EndNote Citation File
.eot
Font
Embedded OpenType Font
.epf
Data
Edgecam Educational Part File
.epi
Compressed
EclipsePackager2000 Compressed File
.epibrw
Web
Web File Location
.epk
Game
Metin2 Game Data Package
.epp
Text
EditPad Pro Project
.epp
Data
TalaPhoto Project
.epp
Data
Efficient PPC Project File
.eps
Vector Image
Encapsulated PostScript File
.epsf
Vector Image
Encapsulated PostScript Format File
.epub
Data
Open eBook File
.epw
Data
EnergyPlus Weather Data File
.eqf
Settings
Winamp Equalizer Preset File
.eql
Developer
Embedded SQL File
.eql
Settings
MathType Settings
.eqn
Misc
WordPerfect Equation
.eqp
Settings
MathType Preferences
.er1
Data
ERWin Entity Relationship Diagram
.erb
Game
Evil Genius Resource File
.erf
Raster Image
Epson RAW File
.err
Text
FoxPro Compilation Error
.err
Text
Error Log File
.es
Executable
SageCRM Script File
.esg
Game
Enigmo Saved Game File
.esh
Executable
Extended Shell Batch File
.esp
Data
ACD/Labs Dataset
.esproj
Web
Espresso Project File
.esps
Audio
ESPS Sampled Data File
.ess
Data
EasySpreadsheet Spreadsheet
.est
Data
Construction Cost Estimate File
.est
Data
Streets & Trips Map File
.esx
Data
Xactimate Insurance Claims Estimate
.et
Data
Easiteach Lesson File
.eta
Data
Google Earth Placemark File
.etd
Data
Adobe Reader EBX Transfer Data File
.etf
Text
ENIGMA Transportable File
.etl
Data
Microsoft Event Trace Log File
.etx
Text
Structure Enhanced Text (Setext) File
.euc
Text
Extended Unix Code File
.eui
Disk
Ensoniq EPS Compacted Disk Image
.eum
Settings
Enterprise User Monitor Configuration File
.ev
Data
Echoview File
.ev3
Settings
Everlock Options File
.ev3
Data
Team Manager Meet Event File
.evo
Video
HD DVD Video File
.evt
Data
Windows Event Viewer Log File
.evy
Data
Envoy File
.ex
Developer
Euphoria Source Code
.ex4
Executable
MetaTrader Program File
.exd
Misc
Control Information Cache File
.exe
Executable
Windows Executable File
.exe
Executable
PortableApps.com Application
.exe4j
Settings
Exe4j Configuration File
.exif
Data
Exchangeable Image Information File
.exopc
Executable
ExoPC Application
.exp
Data
Export File
.exp
Settings
SonicWALL Preference File
.exp
Data
Aurora Expert Trace File
.exp
3D Image
CATIA 4 Export File
.exs
Game
Blades of Exile Scenario
.ext
Misc
Norton Commander Extension
.exx
Data
IBM Linkway MsgPut File
.eyb
Misc
Microsoft Encarta Yearbook Update File
.eye
Video
Eyemail Video Recording File
.ezs
Executable
EZ-R Stats Batch Script
.ezt
Executable
EZT Malicious Worm File
.ezw
Misc
easyOFFER Real Estate Form File
F File Extensions
File types with extensions that start with the letter F.
Extension
File Type
File Description
.f
Developer
Fortran Source Code
.f
Compressed
Freeze Compressed File
.f2r
Audio
Farandoyle Linear Module File
.f32
Audio
Raw 32-Bit Audio File
.f3r
Audio
Farandoyle Blocked Module File
.f4v
Video
Flash MP4 Video File
.f64
Audio
Raw 64-Bit Audio File
.f90
Developer
Fortran 90 Source File
.fa
Data
FASTA Formatted Sequence File
.fac
Image
FACE Graphic
.face
Image
FACE Graphic
.fal
Raster Image
Bitmap Graphic Header Information
.faq
Text
Frequently Asked Questions Document
.far
Audio
Farandole Composer Module
.far
Game
The Sims Archive File
.fas
Executable
Compiled Fast-Load AutoLISP File
.fas
Executable
QuickSilver Fast Save Lisp File
.fasta
Data
FASTA Sequence File
.fat
Settings
Zinf Theme File
.fax
Raster Image
Fax Document
.fb2
Text
FictionBook 2.0 File
.fbc
Backup
Family Tree Maker for DOS Backup File
.fbf
Backup
Free Backup Fix Backup File
.fbk
Backup
Family Tree Maker for Windows Backup File
.fbk
Backup
Microsoft Dynamics NAV Backup File
.fbl
Text
CADfix Command Level Log File
.fbl
Data
iGO Map File
.fbm
Image
Fuzzy Bitmap
.fbp
Developer
wxFormBuilder Project
.fbr
Video
FlashBack Screen Recording
.fbu
Backup
FEBE Firefox Backup File
.fbw
Backup
HP Recovery Manager Backup File
.fbx
3D Image
Autodesk FBX Interchange File
.fbz
Video
FlashBack Screen Recorder Movie
.fc2
3D Image
Poser Face Pose File
.fc2map
Game
Far Cry 2 User Map
.fcc
Settings
Forms Credential Collector File
.fcd
Vector Image
FastCAD DOS Drawing
.fcd
Disk
Virtual CD Format
.fcd
Data
First Choice Database
.fcp
Video
Final Cut Project
.fcs
Data
First Choice Spreadsheet
.fcw
3D Image
FastCAD Windows Drawing
.fcz
3D Image
Compressed Poser Face Pose File
.fd
Developer
DataFlex Data File
.fd
Settings
LaTeX Font Definition File
.fd2
Page Layout
PictureMate Borders File
.fdb
Data
Portfolio Catalog
.fdb
Data
Art Explosion Catalog
.fdb
Data
Microsoft Dynamics NAV Database File
.fdd
Disk
Parallels Desktop Floppy Disk Image File
.fdf
Text
Acrobat Forms Data Format
.fdi
Disk
Amiga Disk Image
.fdp
Compressed
MySafe Encrypted Data
.fdr
Text
Final Draft Document
.fdr
Misc
Windows Error Report File
.fds
Text
Final Draft Secure Copy
.fdx
Text
Final Draft Document
.fes
Text
Fileless Occurrence Placeholder
.fev
Settings
FLAMES Environment Variable File
.ff
Game
Call of Duty 4 Fast File
.ffa
System
Find Fast Status File
.ffd
Data
Flat File Description
.fff
Audio
Gravis UltraSound Sound Bank
.ffil
Font
Mac Font Suitcase
.ffl
System
Find Fast Document List
.ffo
System
Find Fast Document Properties Cache
.fft
Text
Final Form Text File
.ffwp
Data
FormsForWeb Packet
.ffx
System
Microsoft Find Fast Index
.fgd
Game
Forge Game Data File
.fgl
Developer
Fifth Generation Language Source File
.fh10
Vector Image
FreeHand 10 Drawing File
.fh11
Vector Image
FreeHand 11 Drawing File
.fh7
Vector Image
FreeHand 7 Drawing File
.fh8
Vector Image
FreeHand 8 Drawing File
.fh9
Vector Image
FreeHand 9 Drawing File
.fhc
Data
FHC Data File
.fhd
Image
FreeHand Drawing File
.fic
Developer
WINDEV Hyper File Database
.fid
Data
File Expander Engine Descriptions Database
.fif
Vector Image
Fractal Image File
.fig
Vector Image
Xfig Drawing
.fil
Raster Image
Symbian Application Logo File
.fil
Data
Files List Object File
.file
Misc
Generic Windows File
.fits
Image
Flexible Image Transport System
.fky
Executable
FoxPro Macro
.fl
Game
Freelancer Saved Game File
.fla
Developer
Adobe Flash Animation
.flac
Audio
Free Lossless Audio Codec File
.flame
Data
Fractal Flame File
.flc
Video
FLIC Animation
.flf
Misc
Microsoft Dynamics NAV License File
.flh
Video
FLIC Animation File
.fli
Video
FLIC Animation
.fll
Data
FoxPro Dynamic-Link Library
.flo
Data
iGrafx FlowCharter File
.flo
Data
RFFlow Flowchart File
.flp
Audio
FruityLoops Project
.flp
Misc
Flash Project
.flp
Disk
Floppy Disk Image
.flp
Data
Activprimary Flipchart File
.flr
Text
Flare Decompiled ActionScript File
.fls
Misc
ArcView GIS Windows Help Supporting File
.fls
Audio
Flash Lite Sound Bundle
.flt
Data
Flight Simulator Saved Flight
.flt
Plugin
Adobe Audition Filter
.flt
Plugin
Image Filter
.flv
Video
Flash Video File
.flx
3D Image
FelixCAD Drawing
.flx
Video
FLIC Animation
.fm
Data
FileMaker Spreadsheet
.fm
Page Layout
FrameMaker Document
.fm5
Data
FileMaker 5 Database
.fml
Game
WWE RAW Character File
.fmp
Web
123 Flash Menu Project
.fmp
Data
FileMaker Pro Database
.fmt
Settings
FoxPro Format File
.fmv
Vector Image
Frame Vector Metafile
.fmx
Plugin
FileMaker Plug-in
.fnc
Settings
Frogans Player Network Certificate
.fnc
Misc
QuickCAM 3D CNC File
.fnt
Font
Windows Font File
.fnta
Game
Aleph One Font File
.fo
Data
XSL-FO Form
.fob
Data
Dynamics NAV Object Container File
.fol
Data
PFS First Choice Database File
.fon
Font
Generic Font File
.fop
Data
InfoZoom Protected Data File
.for
Developer
Fortran 77 Source File
.forge
Game
Assassin's Creed Game Data File
.fox
Data
InfoZoom Data File
.fp
Data
FileMaker Pro Spreadsheet
.fp3
3D Image
FloorPlan 3D Design File
.fp3
Data
FileMaker Pro 3 Database
.fp4
Data
FileMaker Pro 4 Database
.fp5
Data
FileMaker Pro 5 Database
.fp7
Data
FileMaker Pro 7+ Database
.fpa
Developer
Front Panel Encrypted Order File
.fpbf
System
Mac OS X Burn Folder
.fpd
Developer
Front Panel Order File
.fpe
3D Image
FPS Creator Entity File
.fpenc
Encoded
FileProtect Encrypted File
.fpf
3D Image
IKEA Home Planner File
.fpfv
Misc
File Protected From Virus
.fpg
Game
FPS Creator Game Project File
.fpi
Executable
FPS Creator Intelligence Script
.fpid
Game
FPS Creator AI Wizard Data File
.fpk
Misc
JetForm FormFlow File
.fpm
Game
FPS Creator Map File
.fpm
Developer
FPS Creator Map File
.fpmb
Game
FPS Creator Mab Buffer File
.fpmo
Game
FPS Creator Map Overlay File
.fpp
Developer
Front Panel Project
.fpp
Game
FPS Creator Prefab File
.fpp
Developer
Fortran Source Code
.fps
Game
FPS Creator Segment File
.fpsl
Data
FileMaker Pro Snapshot Link
.fpt
Text
FileMaker Pro Database Memo File
.fpt
Text
FoxPro Table Memo
.fpx
Raster Image
FlashPix Bitmap Image File
.framework
Developer
Mac OS X Application Framework
.frc
Game
FS Recorder File
.frk
Misc
Macintosh Resource or Data Fork
.frl
Data
Electronic Form Loader
.frm
Data
ADL Form
.frm
Developer
Visual Basic Text Form
.frm
Misc
Form File
.frm
Data
MySQL Database Format File
.fro
Data
dBASE IV Compiled Report
.frs
Executable
Flash Renamer Script
.frt
Text
FoxPro Report Memo
.frx
Developer
Visual Basic Binary Form
.frx
Data
FoxPro Report
.frz
Misc
Locked FormFlow File
.frz
Game
Snes9x Saved State
.fs
Image
FlexiSIGN Document
.fs
Plugin
Mac OS X File System Plug-in
.fs2
Game
FreeSpace 2 Saved Mission File
.fsb
Data
FMOD Sample Bank File
.fsc
Data
Practical Scriptwriter File
.fsg
Game
FreeCol Saved Game File
.fsm
Game
FreeSpace Mission File
.fsm
Audio
Farandole Composer WaveSample File
.fsm
Encoded
Splitty Master Split File
.fsproj
Developer
FireStarter Project File
.fss
Encoded
Splitty Data Split File
.fst
Game
Crazy Machines 2 Object File
.ft
Settings
Edgecam Feature Template
.ft10
Vector Image
FreeHand 10 Drawing Template
.ft11
Vector Image
FreeHand 11 Drawing Template
.ft7
Vector Image
FreeHand 7 Drawing Template
.ft8
Vector Image
FreeHand 8 Template
.ft9
Vector Image
FreeHand 9 Drawing Template
.ftg
System
Full Text Group
.ftil
Misc
e-Hastakshar Contract Note
.ftm
Data
Family Tree Maker for DOS File
.ftploc
Misc
FTP Location
.fts
System
Full Text Search
.ftw
Data
Family Tree Maker File
.ful
Backup
Microsoft Backup File List
.fw
Misc
Firmware Update File
.fwt
Settings
FacetWin Configuration File
.fx
3D Image
Direct3D Effects File
.fxb
Plugin
VST Audio Plug-in
.fxc
Text
FilePackager Configuration
.fxg
Vector Image
Flash XML Graphics File
.fxm
Page Layout
WinFax Document
.fxp
Plugin
VST Audio Plug-in
.fxp
Executable
FoxPro Compiled Source
.fxt
Plugin
Finale Plug-in
.fzb
Audio
Casio FZ-1 Bank Dump
.fzf
Audio
Casio FZ-1 Full Dump
.fzip
Plugin
Foxit Reader Add-on
.fzv
Audio
Casio FZ-1 Voice Dump
G File Extensions
File types with extensions that start with the letter G.
Extension
File Type
File Description
.g
3D Image
BRL-CAD Geometry File
.g3x
Game
RealFlight Content File
.g721
Audio
G.721 Audio File
.g723
Audio
G.723 Audio File
.g726
Audio
G.726 Audio File
.gadget
Executable
Windows Gadget
.gam
Game
Saved Game File
.game
Game
Apple Chess Saved Game
.gan
Data
GanttProject Project File
.gau
Misc
Flight Simulator Gauge File
.gb
Game
Game Boy ROM File
.gb1
Backup
Game Maker Backup File
.gba
Game
Game Boy Advance ROM
.gbc
Game
Game Boy Color ROM
.gbi
Disk
gBurner Project File
.gbr
Data
Gerber File
.gbx
Game
Nadeo Game File
.gbx
Misc
Gerber PCB File
.gc
Data
GraphClick File
.gca
Compressed
GCA File Archive
.gcd
Vector Image
Generic CADD Drawing File
.gcd
Disk
Prassi CD Image
.gcf
Game
Game Cache File
.gci
Game
GameCube Save File
.gcm
Game
Game Cube ROM
.gcs
Game
GameCube SharkSave File
.gcx
Data
Grapher Graph File
.gdb
Data
InterBase Database File
.gdr
Font
Symbian OS Font File
.gds
Image
Graphic Design System
.ged
Developer
Game Editor Project File
.ged
Data
GEDCOM Genealogy Data File
.gedcom
Data
GEDCOM Genealogy File
.gem
Developer
RubyGems Package
.gem
Page Layout
Ventura Publisher Document
.gem
Vector Image
GEM Metafile
.gen
Data
ArcView ARC/INFO UnGenerate file
.geo
3D Image
VRML Geography File
.gfb
Raster Image
GIFBlast Compressed Image File
.gg
Misc
Google Desktop Gadget File
.ggb
Data
GeoGebra Document
.gho
Backup
Norton Ghost Backup File
.ghs
Backup
Norton Ghost Image Segment
.gi
Disk
Global Image
.gi
Disk
RecordNow! CD Image
.gid
Settings
Windows Help Index File
.gif
Raster Image
Graphical Interchange Format File
.gig
Audio
Tascam GigaSampler File
.gim
Raster Image
PlayStation Portable Image File
.gin
Settings
GEMS Engine Control Unit File
.gio
Text
Adagio Score
.gio
Text
Nyquist MIDI File
.gkh
Disk
Ensoniq EPS Family Disk Image
.gks
Image
Graphics Kernel System
.gl
Video
GRASP Animation
.glade
Developer
Glade Project File
.global
Developer
Global Makefile
.gls
Developer
GLScript Game Script
.gly
Misc
Word Glossary File
.gm6
Developer
Game Maker 6 Project File
.gmd
Developer
Game Maker Program Code
.gmf
Image
Geology Multi-File
.gmk
Developer
Game Maker 7 File
.gml
Developer
Game Maker Language File
.gml
Data
Geography Markup Language File
.gmo
Developer
GNU Machine Object File
.gmres
Game
Game Maker Resource File
.gms
Data
Gesture and Motion Signal File
.gmv
Game
Gens Game Recording
.gne
Web
Flickr Web Page
.gno
Data
GenoPro Genealogy Tree File
.gnp
Data
GNPeak Output File
.gorm
Developer
Gorm Interface Resource File
.gp3
Data
Guitar Pro 3 File
.gp4
Misc
CCITT Group 4 Fax File
.gp4
Misc
Guitar Pro 4 Tablature
.gp5
Audio
Guitar Pro 5 Tablature File
.gpd
Raster Image
Graphic PhotoDefiner Image File
.gpe
Executable
GP2X Video Game
.gpg
Misc
GNU Privacy Guard Public Keyring
.gpi
Data
Garmin Point of Interest File
.gpk
Audio
WaveLab Audio Peak File
.gpn
Text
GlidePlan Map Document
.gps
Data
Survey Pro Coordinate File
.gps
Settings
GenePix Settings File
.gpu
Executable
GP2X Utility Program
.gpx
Data
GPS Exchange File
.gr2
Game
Granny 3D File
.gra
Data
Microsoft Graph File
.grade
Data
GradeStat Document
.graffle
Image
OmniGraffle Drawing
.grasp
Video
GRASP Animation
.grd
Settings
Photoshop Gradient File
.grf
Game
Ragnarok Client Archive
.grf
Data
Generic Graph File
.grf
Data
DPlot Graph File
.grib
Data
Gridded Binary File
.grk
Data
Gradekeeper Class Gradebook File
.grl
System
Windows Update Status File
.grn
3D Image
Granny 3D File
.gro
Raster Image
Graphic Object Bitmap
.grob
Raster Image
Graphic Object Bitmap File
.growlregdict
Misc
Growl Temp File
.growlticket
Settings
Growl Notification File
.grp
Game
StarCraft Graphics Group File
.grp
System
Windows Program Manager Group
.grr
Data
Gradekeeper Class Roster File
.grv
Data
Office Groove File
.gry
Image
Grayscale Image
.gs
Data
GemStone Document
.gs3
Developer
GameStarter File
.gsd
Text
Generic Station Description File
.gsd
Vector Image
Graphtec Vector Graphics File
.gsm
Audio
Global System for Mobile Audio File
.gsm
3D Image
Graphic Description Language File
.gsm
Audio
US Robotics GSM Audio File
.gsp
Web
IMail Error Message File
.gsp
Misc
Geometer's Sketchpad File
.gst
Data
MapInfo Geoset File
.gthr
Text
Gather Log File
.gtp
Data
Guitar Pro File
.gtp
Settings
GNOME Theme Package File
.gts
Video
CaptiveWorks PVR Video File
.gv
Text
GraphcViz DOT File
.gvi
Video
Google Video File
.gvp
Video
Google Video Pointer
.gwi
Settings
GroupWise Database Shortcut File
.gwk
Data
GraphiCode PCB Job File
.gwp
Data
Greetings Workshop Project File
.gws
Settings
GeoMedia GeoWorkspace File
.gxc
Vector Image
General CADD Pro Component
.gxd
Vector Image
General CADD Pro Drawing
.gxl
Data
Graph Exchange Language File
.gxt
Settings
Grand Theft Auto Text File
.gz
Compressed
Gnu Zipped Archive
.gzi
Compressed
Unix Gzip File
.gzip
Compressed
Gnu Zipped File
H File Extensions
File types with extensions that start with the letter H.
Extension
File Type
File Description
.h
Developer
C++ or Java Header File
.h1q
Misc
Microsoft Help Merged Query Index File
.h3m
Game
Heroes 3 Map File
.h4r
Game
Heroes of Might and Magic IV Data File
.ha
Compressed
HA Compressed Archive
.hal
Developer
HansaWorld Application Language File
.ham
Game
Descent 2 Resource File
.has
Developer
Haskell Script
.hbc
Compressed
HyperBac Compressed Archive
.hbc2
Compressed
HyperBac Compressed File Archive
.hbe
Compressed
HyperBac Compressed and Encrypted Archive
.hbx
Encoded
BinHex Encoded File
.hcc
Data
HydroCAD Prefab Chamber Data File
.hce
Data
HydroCAD Hydrograph Data File
.hci
Data
HydroCAD IDF Data File
.hcp
Data
HydroCAD Project File
.hcr
Data
HydroCAD Rainfall Curve Data File
.hcr
Page Layout
Half-Fold Card File
.hcu
Data
Hydrograph Units Definitons File
.hcx
Image
ChartXL Chart
.hd2
3D Image
Poser Hand Pose File
.hda
Data
HotDocs Auto-Assemble File
.hdb
Data
HansaWorld Database File
.hdd
Disk
Parallels Desktop Hard Disk File
.hdf
Data
Hierarchical Data Format File
.hdi
Data
HotDocs Auto-Install File
.hdl
Data
HotDocs Library
.hdm
Web
HDML File
.hdml
Web
Handheld Device Markup Language File
.hdmov
Video
QuickTime HD Movie File
.hdmp
System
Windows Heap Dump
.hdp
Raster Image
HD Photo File
.hdr
Raster Image
High Dynamic Range Image File
.hdz
3D Image
Compressed Poser Hand Pose File
.hex
Misc
Hexadecimal Source File
.hex
Encoded
BinHex Encoded File
.hf
Image
HF Image
.hgl
Misc
HP Graphics Language File
.hh
Developer
C++ Header File
.hhc
System
HTML Help Table of Contents
.hhh
Developer
Power C Precompiled Header File
.hhk
System
HTML Help Index
.hhsl
Game
Hockey High Score List File
.hht
Text
Help and Support Center HHT File
.hid
Settings
Sony Ericsson Remote Settings File
.hif
Data
Quicken Online File
.hip
Image
Houdini Project File
.hipnc
Image
Houdini Apprentice File
.his
Misc
FindinSite Database Definition File
.hit
Game
The Sims Sound File
.hki
Compressed
WinHKI Archive
.hki1
Compressed
WinHKI HKI1 Archive
.hki2
Compressed
WinHKI HKI2 Archive
.hki3
Compressed
WinHKI HKI3 Archive
.hkm
Video
Havok Movie File
.hl
Data
HeuristicLab Storage File
.hlb
Misc
VMS / VAX Help Library
.hlp
System
Windows Help File
.hlx
Misc
ATI Radeon Video Driver Support File
.hm3
Misc
Help & Manual 3 Project
.hma
Audio
Sony HI-MD Audio File
.hme
Settings
Windows Mobile Theme File
.hmk
Page Layout
Hallmark Card Studio File
.hml
Data
HostMonitor TestList File
.hms
Executable
HostMonitor Script File
.hmt
Data
HighMAT File
.hmx
Misc
Help & Manual 4 Project
.hog
Game
Descent Mission File
.hot
Game
The Sims Sound File
.hpf
Developer
High Performance Fortran File
.hpf
Executable
HP9100A Program File
.hpg
Vector Image
HPGL Plot File
.hpgl
Vector Image
HP Graphics Language Plotter File
.hpi
Raster Image
Hemera Photo Objects Image File
.hpj
System
Help Project File
.hpk
Compressed
HPack Compressed Archive
.hpl
Vector Image
HP-GL Plotter File
.hpp
Developer
C++Builder Header File
.hqx
Encoded
BinHex 4.0 Encoded File
.hr
Image
TRS-80 Graphic
.hr2
3D Image
Poser Hair File
.hrf
Image
Hitachi Raster Format
.hrz
3D Image
Compressed Poser Hair File
.hs
Text
Java HelpSet File
.hs
Developer
Haskell Script
.hs
Misc
Motorola Flash Flex File
.hs2
Data
HyperRESEARCH 2 Study File
.hsk
Data
Huskey Truss & Building Supply Import File
.hst
Data
History File
.hta
Executable
HTML Application
.htaccess
Web
Apache HTACCESS File
.htc
Text
HTML Component File
.htg
Data
HackTheGame Mission Pack
.htm
Web
Hypertext Markup Language File
.html
Web
Hypertext Markup Language File
.htt
System
Hypertext Template File
.htx
Web
HTML Extension File
.htz4
Page Layout
HyperMaker Publication
.huh
Data
HydroCAD Unit Hydrograph Definitions File
.hus
Misc
Husqvarna Embroidery File
.hwp
Text
Hangul (Korean) Text Document
.hxm
Game
Descent 2 Resource Modification
.hxs
Web
Help 2 Compiled Help File
.hyp
Compressed
HYPER Compressed Archive
.hyv
Data
Team Manager Meet Event File
.hz
Text
Chinese (Hanzi) Text
I File Extensions
File types with extensions that start with the letter I.
Extension
File Type
File Description
.i
Developer
INTERCAL Source File
.i00
Disk
DVD Shrink Part 1 File
.i01
Disk
DVD Shrink Part 2 File
.i02
Disk
DVD Shrink Part 3 File
.i5z
Data
IUCLID 5 Import/Export File
.iaf
Settings
Microsoft Outlook Settings File
.iam
3D Image
Inventor Assembly File
.ib
Data
InterBase Database
.ibp
Disk
IsoBuster Managed Image Information File
.ibq
Disk
IsoBuster Managed Image File
.ibt
Game
Texture and Model File
.ic1
Image
Low Resolution Imagic Graphic
.ic2
Image
Medium Resolution Imagic Graphic
.ic3
Image
High Resolution Imagic Graphic
.ica
Settings
Citrix ICA File
.ica
Image
Image Object Content Architecture (IOCA) File
.icap
Page Layout
InCopy Package File
.icb
Image
Targa ICB Bitmap Image
.icc
Settings
ICC Profile
.icd
Executable
SafeDisc Encrypted Program
.icd
Settings
Installable Client Driver File
.ice
Compressed
ICE File Archive
.icl
System
Windows Icon Library File
.icm
Settings
Image Color Matching Profile
.icma
Misc
InCopy Assignment File
.icml
Page Layout
InCopy Document
.icn
Raster Image
Windows Icon File
.icns
System
Mac OS X Icon Resource File
.ico
System
Icon File
.icon
Raster Image
Icon Image File
.iconpackage
Settings
IconPackager Theme File
.icontainer
Misc
CandyBar iContainer File
.ics
Audio
IC Recorder Sound File
.ics
Data
iCalendar File
.ics
3D Image
IronCAD 3D Drawing File
.id
Misc
Lotus Notes User ID File
.id2
Data
Windows Live Messenger Emoticon File
.idap
Page Layout
InDesign Assignment Package
.idb
Developer
Visual Studio Intermediate Debug File
.idc
Web
Internet Database Connector File
.idf
Settings
MIDI Instrument Definition File
.idlk
Misc
InDesign Lock File
.idml
Page Layout
InDesign Markup Language File
.idms
Page Layout
InDesign Snippet
.idw
Image
Inventor Drawing
.idx
Data
Navigation POI File
.idx
Data
HMI Historical Log Index File
.idx
System
Index File
.idx
Text
Outlook Express Mailbox Index File
.idx0
Game
Runescape Cache Index File
.idx255
Game
Runescape Cache File
.ies
Data
IES Photometric Data File
.ifc
3D Image
Industry Foundation Classes File
.iff
Image
Amiga IFF Graphic
.iff
Audio
Interchange File Format
.ifo
Video
DVD-Video Disc Information File
.igc
Data
Anime List Builder Input File
.iges
3D Image
IGES File
.igr
Settings
Quest3D Channel Group Layout File
.igs
3D Image
IGES Drawing File
.ihw
Settings
IN-HEH Timeline Workspace
.ihx
Data
IN-HEH Timeline Database
.ii
Data
Axialis IconWorkshop Extended Information File
.iif
Data
Intuit Interchange Format File
.iil
Text
CleanSweep Installation Log
.iim
Executable
iMacro Macro File
.iip
Settings
ThinAnywhere Configuration File
.iip
Settings
Install Creator Pro Settings File
.iit
Settings
Install Creator Settings File
.iix
Misc
Translation Memory Index File
.ilbm
Image
Deluxe Paint Graphic
.ildoc
Page Layout
QuickSilver Document
.ima
Disk
Disk Image
.image
Disk
Apple Disk Image
.imapmbox
Text
IMAP Mailbox
.imf
Audio
Id Music File
.img
Disk
CloneCD Disk Image Data File
.img
Data
Garmin Map File
.img
Raster Image
GEM Image
.img
Disk
Macintosh Disk Image
.imga
Game
Aleph One Image File
.imj
Raster Image
JFIF Bitmap Image
.iml
Developer
IntelliJ IDEA Module
.iml
Misc
ACT! Internet Mail Message
.imovieproj
Video
iMovie Project File
.imovieproject Video
iMovie Project
.imp
Audio
Audition Impulse File
.imt
Data
My Time Data File
.imy
Misc
iMelody Ringtone File
.in
Misc
Spyware File
.inc
Developer
Include File
.inca
Misc
InCopy CS3 Assignment File
.incp
Data
InCopy CS3 Package File
.inct
Page Layout
InCopy Template
.incx
Page Layout
InCopy CS3 Interchange File
.ind
Page Layout
InDesign Document
.ind
Misc
Memory Stick Formatting File
.indd
Page Layout
Adobe InDesign File
.indl
Page Layout
InDesign Library
.indp
Page Layout
InDesign CS3 Package File
.inds
Page Layout
InDesign Snippet File
.indt
Page Layout
InDesign Template
.inetloc
Misc
Internet Location
.inf
Settings
Setup File or Installer Script
.info
Raster Image
ZoomBrowser Image Index File
.ing
Misc
MasterCook Ingredients File
.ini
Settings
Gravis UltraSound Bank Setup File
.ini
Settings
Windows Initialization File
.ini
Settings
Symbian OS Configuration File
.ink
Raster Image
Pantone Reference File
.ink
Vector Image
Pocket PC Handwritten Note
.ink
Data
Mimio Ink Data File
.inm
Misc
FaxMaster Document
.inp
Data
ABAQUS Input File
.ins
Audio
Ensoniq Instrument
.ins
Audio
Sample Cell II Instrument Definition File
.ins
Data
Inspiration File
.ins
System
Internet Naming Service File
.int
Raster Image
SGI Integer Image
.inx
Page Layout
InDesign Interchange File
.inx
Executable
Compiled Script
.ion
System
4DOS File Description
.ip
Data
IconPackager Theme File
.ipa
Executable
iPhone or iPod Touch Application
.ipd
Backup
BlackBerry Backup File
.ipf
Disk
Interchangeable Preservation File
.ipf
Text
OS/2 Help File
.ipf
Executable
SMS Installer Script
.ipg
Compressed
iPod Game File
.ipk
Compressed
Itsy Package
.ipp
Developer
Inline Guard Macro File
.ipr
Developer
InstallShield Professional Project File
.iproject
Data
iClone Project File
.ips
Game
Internal Patching System Patch File
.ipsw
Misc
iPod and iPhone Software Update File
.ipt
3D Image
Inventor Part File
.iptheme
Settings
IconPackager Raw Theme File
.ipx
Raster Image
IPIX Image
.iqy
Web
Internet Query
.irock
Data
intelliRock Sensor Data File
.irp
Data
Internet Researcher Project File
.irr
Data
Brewer Lamp File
.irx
Data
Brewer Irradiation File
.isc
Developer
Xilinx Device Configuration File
.isd
Page Layout
Flexera InstallShield Dialog Box File
.ise
Developer
InstallShield Express Project File
.isf
Data
Inspiration Flowchart Document
.ish
Compressed
ISH Compressed Archive
.ism
Developer
InstallShield Project File
.isn
Misc
Installer Source Files
.iso
Disk
Disc Image File
.isp
Settings
IIS Internet Service Provider Settings
.isr
Game
GoMoku Game File
.iss
Settings
Inno Setup Script
.iss
Settings
InstallShield Silent Response File
.ist
Developer
InstallShield Project Template File
.isu
Executable
InstallShield Uninstaller Script
.isz
Disk
Zipped ISO Disk Image
.it
Audio
Impulse Tracker Module
.ita
Compressed
IconTweaker Theme Archive
.itc
Misc
iTunes Cover Flow Data File
.itc2
Raster Image
iTunes Cover Flow Data File 2
.itdb
Data
iTunes Database File
.ithmb
Image
iPod Photo Thumbnails
.iti
Audio
Impulse Tracker Instrument
.itl
Data
iTunes Library File
.itm
Data
iThink Model File
.itn
Data
TomTom Navigator Itinerary File
.its
Audio
Impulse Tracker Sample
.its
System
Internet Document Set
.itt
Settings
IconTweaker Theme File
.itw
Data
InTouch With Database File
.itx
Data
ITX Form Template
.iv
3D Image
Open Inventor Scene Graph File
.iv2i
Backup
Norton Ghost Incremental Virtual Volume Image
.iva
Misc
Dementia.4207 Virus File
.iva
Video
Surveillance Video File
.ivf
Video
Indeo Video Format File
.ivr
Video
Internet Video Recording
.ivr
Image
Image World
.ivs
Video
Internet Streaming Video
.ivt
Data
Beyond 20/20 Table
.ivt
Game
International Volleyball 2006 Data File
.iw
Data
Chain Engineering Database File
.iwd
Game
Call of Duty Game Data File
.iws
Developer
IntelliJ IDEA Web Page
.iws
Misc
InstallWatch Scan File
.iwz
Developer
InstallShield Express 2 Project File
.ix
Settings
dtSearch Index File
.ixa
Disk
Ulead Disc Image format
.ixb
Data
Ulead Disc Image
.izz
Video
Isadora Media Control Project
.izzy
Video
Isadora Project
J File Extensions
File types with extensions that start with the letter J.
Extension
File Type
File Description
.j
Raster Image
JPEG Image
.j
Compressed
JAR Archive
.j
Developer
Java Source File
.j2c
Raster Image
JPEG 2000 Code Stream
.j2i
Game
Jazz 2 Internet Link File
.j2k
Raster Image
JPEG 2000 Image
.j2l
Game
Jazz Jackrabbit 2 Level File
.jad
Misc
Java Application Descriptor File
.jam
Audio
JAM Musical Score
.jam
Game
PS3 Unreal Tournament 3 Mod File
.jar
Executable
Java Archive File
.jar.pack
Compressed
Pack200 Packed Jar File
.jas
Raster Image
Paint Shop Pro Compressed Graphic
.jasper
Data
JasperReports Data File
.jav
Developer
Java Source File
.java
Developer
Java Source Code File
.jbf
Image
Paint Shop Pro Browser Cache
.jbig
Image
Joint Bi-level Image Group File
.jbk
Backup
Juno Backup File
.jbr
Raster Image
Paint Shop Pro Brushes File
.jc
Misc
FlashGet Partial Download
.jc!
Misc
FlashGet Incomplete Download
.jcz
Web
Liquid Motion Animation
.jdb
Data
Symantec Endpoint Protection Update File
.jed
Developer
Xilinx JEDEC Programming File
.jef
Data
Janome Embroidery Format
.jfi
Image
JPEG File Interchange
.jfif
Raster Image
JPEG File Interchange Format
.jfsl
Developer
Flash JavaScript File
.jg4
Game
BigJig Jigsaw Puzzle
.jgz
Compressed
Gzipped Javascript File
.jhtml
Web
Java HTML Web Page
.jia
Raster Image
Digital Photo Navigator Album
.jic
Developer
JTAG Indirect Configuration File
.jic
Compressed
Java Icon File
.jif
Raster Image
JPEG Image File
.jiff
Raster Image
JPEG Image File Format
.jis
Text
Japanese Industry Standard Text
.jmp
Data
JMP Data File
.jng
Raster Image
JPEG Network Graphic
.jnlp
Web
Java Web Start File
.jnt
Data
Windows Journal File
.job
Data
MetaCAM Nest Job File
.joboptions
Data
Adobe Joboptions File
.joined
Data
HJ-Split Data File
.jp1
Text
Japanese (Romaji) Text File
.jp2
Raster Image
JPEG 2000 Core Image File
.jpc
Raster Image
JPEG 2000 Code Stream File
.jpd
Raster Image
Joint PhotoDefiner Image
.jpd
Developer
Java Process Definition
.jpe
Raster Image
JPEG Image
.jpeg
Raster Image
JPEG Image File
.jpf
Raster Image
JPEG 2000 Image
.jpg
Raster Image
JPEG Image File
.jph
Data
JProbe Memory Snapshot
.jpr
Developer
JBuilder Project
.jpw
Image
World File for JPEG
.jpx
Developer
JBuilder Project
.jpx
Raster Image
JPEG 2000 Image File
.jrprint
Data
JasperReports Print File
.jrs
Misc
Exchange Reserve Transaction Log File
.jrxml
Data
JasperReports Layout File
.js
Web
JavaScript File
.js
Executable
JScript Executable Script
.jse
Executable
JScript Encoded File
.jsf
Settings
Project64 Joystick File
.json
Developer
JavaScript Object Notation File
.jsp
Web
Java Server Page
.jspa
Web
Java Servlet Alias
.jspx
Web
XML Java Server Page
.jsx
Executable
ExtendScript Script File
.jt
3D Image
JT Open CAD File
.jtf
Raster Image
JPEG Tagged Interchange Format
.jtp
Page Layout
Windows Journal Template
.jude
Data
JUDE Project File
.jvs
Web
JavaScript Proxy Autoconfig File
.jwl
Raster Image
Roxio Jewel Case File
.jws
Settings
Java Workspace Settings File
.jws
Web
Java Web Services File
.jxr
Raster Image
JPEG XR Image
K File Extensions
File types with extensions that start with the letter K.
Extension
File Type
File Description
.k25
Audio
Kurzweil K2500 File
.k26
Audio
Kurzweil K2600 File
.kap
Data
BSB Chart Image File
.kar
Audio
Karaoke MIDI File
.kb
Developer
C++ Keyboard Script
.kbd
System
Keyboard Layout Script
.kdb
Data
Keypass Database File
.kdc
Raster Image
Kodak Photo-Enhancer File
.kdevdlg
Developer
KDevelop Dialog Box File
.kdevelop
Developer
KDevelop Project Data File
.kdevprj
Developer
KDevelop Project File
.kdk
Raster Image
Kodak Proprietary Decimated TIFF File
.kdmp
Developer
Windows Crash Dump File
.kext
System
Mac OS X Kernel Extension
.key
Settings
Keyboard Definition File
.key
System
Security Key
.key
Misc
Keynote Presentation
.keychain
Settings
Mac OS X Keychain File
.kfx
Image
Kofax Image File
.kgb
Compressed
KGB Archive File
.khd
Misc
Dynamics AX Kernel Help Data File
.khi
Misc
Dynamics AX Kernel Help Index File
.kic
Raster Image
Kodak Compressed Image File
.kid
Data
Kidspiration Document
.kin
Audio
Kinetic Music Project
.kismac
Data
KisMAC Webservice File
.kit
Audio
Battery Drum Kit File
.kit
3D Image
20-20 Design File
.kix
Executable
KiXtart Script File
.klg
Text
Log File
.klg
Text
KOFIA Log
.kmc
3D Image
Kinemac Animation File
.kmcobj
3D Image
Kinemac Sprite Object
.kml
Text
Keyhole Markup Language
.kmm
Plugin
K-Meleon Macro Module
.kmp
Audio
Korg Trinity/Triton Keymap File
.kmz
Data
Google Earth Placemark File
.knt
Text
KeyNote Note File
.ko
System
Linux Kernel Module File
.kodak
Raster Image
Kodak Photo CD File
.kon
Text
Yahoo! Widget XML File
.koz
Audio
Audiokoz Music File
.koz
Audio
Bell Music File
.kpf
Data
Komodo Project File
.kpg
Raster Image
Kai's Power Goo Graphic
.kpp
Data
Kid Pix Presentation
.kpr
Data
KPresenter Presentation
.kpx
Data
Kid Pix Picture
.kpz
Data
Komodo Template File
.krz
Audio
Kurzweil K2000 File
.ksc
Audio
Korg Trinity/Triton Script File
.ksf
Audio
Korg Trinity/Triton Sample File
.ksh
Executable
Unix Korn Shell Script
.kt2
Audio
Battery 2 Drum Kit File
.kt3
Audio
Battery 3 Drum Kit File
.kth
Misc
Keynote Theme
.ktp
Audio
Kinetic Project Template
.kwd
Text
KWord Document
.kwreplay
Game
Command & Conquer 3 Replay File
.kyb
Settings
Keyboard Layout
.kyr
Misc
Lotus Domino Key Ring File
.kys
Settings
Adobe Photoshop CS Keyboard Shortcut File
L File Extensions
File types with extensions that start with the letter L.
Extension
File Type
File Description
.l
Audio
Left Audio Channel File
.l
Data
Game of Life File
.l6t
Data
Line 6 Tone File
.la
Audio
Lossless Audio File
.lab
Page Layout
WordPerfect Label Definition File
.laccdb
Data
Microsoft Access Lock File
.lang
Settings
Skype Language File
.las
Data
LIDAR Data Exchange File
.lasso
Web
Lasso Database-Driven Web Page
.latex
Text
LaTeX Document
.lay
Misc
DVD Studio Pro Layout File
.lay
Settings
Rhino 3D Layer State File
.lay
Settings
MAME Layout File
.lbc
Web
Cloaked Affiliate Link Builder Saved Link
.lbi
Developer
Dreamweaver Library Item
.lbl
Data
NiceLabel Template File
.lbl
Page Layout
dBASE Label File
.lbm
Raster Image
Deluxe Paint Bitmap Image
.lbr
Compressed
LU Library Archive
.lbs
Developer
Omnis Library
.lbt
Text
FoxPro Label Memo
.lbu
Settings
Cloaked Affiliate Link Builder Settings File
.lbx
Data
FoxPro Label File
.lcb
Backup
Living Cookbook Backup File
.lcd
Disk
CDSpace Emulated Disk Image
.lcd
Data
ABBYY Language File
.lcf
Data
ArchiCAD Library Container File
.lck
Misc
Program Lock File
.lcm
Data
Lipikar Custom Map File
.ldb
Misc
Microsoft Access Lock File
.ldb
Game
Max Payne Level File
.ldf
Data
SQL Server Transaction Log File
.ldif
Data
LDAP Data Interchange Format File
.ldm
3D Image
VolumeViz Multi-Resolution Volume File
.lds
Developer
Linux Compile Time Header File
.ldw
Game
Virtual Villagers Saved Game File
.lemon
Compressed
LemonShare.net Download
.lex
Data
Adobe Linguistic Library Data File
.lgc
Data
SimpleK Database File
.lgf
Data
PMSCAN Log File
.lgh
Data
HMI Historical Log File
.lgi
Data
Multimedia Logic File
.lgl
Data
Large Graph Layout Edge File
.lgl
Game
LeechGet Download List
.lgo
Developer
Logo Instructions File
.lgp
Game
Final Fantasy Media Archive
.lha
Compressed
LHARC Compressed Archive
.lhs
Developer
Literate Haskell Script
.lib
Data
Generic Data Library
.lic
Settings
Software License
.licenses
Developer
Visual Studio Licensed Classes File
.licx
Developer
Visual Studio License File
.lid
Misc
Kodak EasyShare Album File
.lif
Data
TurboTax Information Archive
.lin
Vector Image
AutoCAD Linetype File
.link
Misc
iPod Link File
.linx
Misc
iPod Links Folder
.lis
Developer
VAX Program Listing
.lis
Text
SQR Output File
.lit
Text
eBook File
.lit
Developer
Literate Haskell Script
.livereg
Data
Symantec Antivirus Session File
.liveupdate
Data
Symantec LiveUpdate File
.lix
Data
ExtendSim Simulation Software Library
.lix
Data
Logos Library System File
.ll
Game
List & Label Preview File
.llb
Data
LabVIEW Library File
.llm
3D Image
Linden Lab Mesh File
.llx
Backup
LabVIEW VI Library Backup File
.lms
Data
LenMus Score File
.lmu
Game
RPG Maker Map File
.lmx
Data
Landmark Exchange File
.lnd
3D Image
3D Landscape File
.lng
Plugin
Acrobat Language Plug-in
.lnk
System
File Shortcut
.lnt
Text
Laego Note Taker File
.lnt
Developer
PC-lint/FlexeLint Configuration File
.lnt
Data
LiveNote Case File
.lnx
Disk
Atari Lynx ROM
.lnx
Compressed
Commodore 64 Lynx Archive
.lo
Executable
Interleaf Compiled Lisp File
.loc
Data
GPS Location File
.lock
Misc
Lock File
.log
Text
Log File
.log1
System
Windows Registry Hive Log File
.log2
System
Windows Registry Hive Log 2 File
.logonvista
Misc
LogonStudio Windows Vista Logon Screen
.logonxp
Misc
LogonStudio Windows XP Logon Screen
.loov
Misc
Smadav Virus Definitions File
.lop
Settings
Mastercook Layout File
.lp2
Text
iLEAP Word Processing Document
.lp7
Data
LP7 Digitally Signed File
.lproj
Developer
Localized Project Folder
.lqr
Compressed
SQ Compressed LBR Archive
.lqt
Audio
Liquid Audio File
.lrc
Text
Lyrics File
.lrf
Data
Sony Portable Reader File
.lrf
Developer
Microsoft Linker Response File
.lrs
Data
Librie Reader Source File
.lrx
Data
Sony Portable Reader File
.lsd
Game
RPG Maker Game Save File
.lsf
Video
Streaming Media Format
.lsf
Data
Logos Library System File
.lsl
Data
LightScribe Label
.lso
Audio
Logic Audio Project
.lsp
Developer
Lisp Program Source Code
.lsp
Data
LANsurveyor Poll List
.lsr
Data
LANsurveyor Report
.lst
Data
LightScribe Label Template
.lst
Text
FoxPro Documenting Wizard List
.lst
Text
Data List
.lsu
Data
LANsurveyor Map
.lsw
Game
RPG Maker Saved Game File
.lsx
Video
Streaming Media Shortcut
.lt2
3D Image
Poser Light Set File
.ltf
Misc
Frogans Shortcut File
.ltr
Text
Letter File
.ltz
3D Image
Compressed Poser Light Set File
.lua
Developer
Lua Source File
.lue
Text
Norton LiveUpdate Log File
.luf
Text
Lipikar Uniform Format File
.luxb
Game
Lux Map File
.lva
Settings
Logitech Video Effects Avatar File
.lvf
Settings
Logitech Video Effects File
.lvl
Game
Game Level File
.lvm
Data
LabVIEW Measurement File
.lvp
Audio
Avaya Voice Player Audio File
.lw4
Data
Lightwright File
.lwfn
Font
Adobe Type 1 Mac Font File
.lwo
3D Image
LightWave 3D Object File
.lwp
Text
Lotus Word Pro Document
.lws
3D Image
LightWave 3D Scene File
.lwtp
Misc
LimeWire Theme Pack
.lwv
Audio
Linguistically Enhanced Sound File
.lxa
Misc
Microsoft Speech Lexicon File
.lxf
3D Image
LEGO Digital Designer Model File
.lxfml
Text
LEGO Digital Designer XML File
.ly
Data
LilyPond File
.lyr
Misc
ArcView Layer File
.lyt
Text
TurboTax Install Log File
.lyx
Text
LyX Document
.lz
Compressed
Lzip Compressed File
.lzh
Compressed
LZH Compressed File
.lzm
Compressed
Slax Module
.lzma
Compressed
LZMA Compressed File
.lzo
Compressed
LZO Compressed File
.lzx
Compressed
Amiga LZX Compressed File
M File Extensions
File types with extensions that start with the letter M.
Extension
File Type
File Description
.m
Data
Mathematica Input File
.m
Developer
Objective-C Implementation File
.m15
Video
MPEG Video
.m1a
Audio
MPEG-1 Audio File
.m1pg
Video
iFinish Video Clip
.m1v
Video
MPEG-1 Video File
.m2
Game
World or Warcraft Model Object
.m21
Video
AXMEDIS MPEG-21 File
.m21
Video
MPEG-21 File
.m2a
Video
MPEG-1 Layer 2 Audio File
.m2p
Plugin
Maxthon 2 Browser Plugin File
.m2p
Video
MPEG-2 Program Stream File
.m2s
Settings
Maxthon 2 Browser Skin File
.m2t
Video
HDV Video File
.m2ts
Video
Blu-ray BDAV Video File
.m2v
Video
MPEG-2 Video
.m3d
3D Image
3D Model File
.m3d
3D Image
DIALux 3D Object File
.m3g
Executable
Mobile 3D Graphics Program
.m3u
Audio
Media Playlist File
.m4
Developer
Macro Processor Library
.m4a
Audio
Apple Lossless Audio File
.m4b
Audio
MPEG-4 Audio Book File
.m4e
Video
MPEG-4 Video File
.m4p
Audio
iTunes Music Store Audio File
.m4r
Audio
iPhone Ringtone File
.m4u
Video
MPEG-4 Playlist
.m4v
Video
iTunes Video File
.m75
Video
MPEG Video
.ma
3D Image
Maya Project File
.ma1
Audio
Monarch Audio File
.mab
Misc
Mozilla Address Book
.mac
Raster Image
MacPaint Image
.mad
Misc
Access Module
.maf
Misc
Microsoft Access Form
.mag
Image
Access Diagram
.mag
Data
Magic Circuit Layout
.magik
Developer
Magik Source Code File
.mai
Data
Microsoft Mail File
.mailhost
Settings
MSN Mailhost Settings File
.mak
Developer
Makefile
.mam
Misc
Microsoft Access Macro
.man
Text
Unix Manual
.manifest
System
Windows Visual Styles File
.map
Game
Half-Life Map File
.map
Data
NAVIGON Map File
.map
Data
Weather Defender Map
.map
Web
Image Map
.mapimail
System
Send To Mail Recipient
.maq
Misc
Microsoft Access Query
.mar
Misc
Microsoft Access Report
.mas
Misc
Access Stored Procedures
.masseffectprofile
Data
Mass Effect Player Profile
.masseffectsave
Game
Mass Effect Saved Game
.master
Web
ASP.NET Master Page
.mat
Raster Image
Vue Material File
.mat
Data
MATLAB MAT-File
.mat
Misc
Microsoft Access Table Shortcut File
.mat
Plugin
V-Ray Materials File
.material
Settings
Rigs of Rods Texture Reference File
.mato
Game
Atomic Combat Saved Game
.mau
Misc
Media Attachment Unit
.mav
Misc
Access View File
.maw
Misc
Access Data Access Page
.max
Page Layout
OmniPage Scanned Document
.max
3D Image
3ds Max Scene File
.max
Raster Image
PaperPort Scanned Document
.max
Game
Action Replay Max Save File
.mb
3D Image
Maya Binary Project File
.mbb
Data
ManaBook Book File
.mbbk
Page Layout
ManaBook Book Kit File
.mbf
Data
Microsoft Money Backup File
.mbg
Data
Microsoft Mailbag
.mbg
Data
Mailbag Assistant Mailbox File
.mbi
Disk
Multi-Bootable Information File
.mbl
Data
Logger Pro Data File
.mbm
Raster Image
Multi Bitmap File
.mbox
Text
E-mail Mailbox File
.mbp
Data
Mobipocket Notes File
.mbx
Data
Outlook Express Mailbox
.mc1
Data
MedCalc Data File
.mc2
Misc
MasterCook 5 Cookbook File
.mc5
3D Image
Poser 5 Material File
.mc6
3D Image
Poser 6 Material File
.mc9
Data
Mastercam 9 Geometry File
.mcd
Data
Mathcad Document
.mcf
Misc
MasterCook 2 Cookbook File
.mcf
Font
Watchtower Library Font File
.mcfi
Misc
Maya Initial Fluid Cache File
.mcfp
Misc
Maya Fluid Cache Playback File
.mci
Misc
Media Control Interface
.mcl
Settings
Windows Media Center Link File
.mco
Misc
Live Messenger Winks File
.mcr
Executable
3ds Max Macroscript File
.mcrp
Encoded
MobyExplorer Encrypted File
.mcs
Image
Mathcad Image
.mcx
3D Image
MICRO CADAM-X/6000 Model Data File
.mcz
3D Image
Compressed Poser Material File
.md
Compressed
MDCD Compressed Archive
.md
Developer
Machine Description File
.md
Data
Moneydance Financial Data File
.md0
Disk
Alcohol Disk Image Segment 1
.md1
Disk
GEAR CD/DVD Disc Image
.md1
Disk
Alcohol Disk Image Segment 2
.md2
Disk
Alcohol Disk Image Segment 2
.md2
Game
Quake 2 Player Model
.md3
Game
Quake III 3D Model
.md5
Misc
MD5 Checksum File
.mda
Plugin
Access Add-in
.mdb
Data
Microsoft Access Database
.mdc
Data
Multi Dimension Cube File
.mde
Plugin
Access Add-in (Compiled)
.mde
Misc
ArchiCAD Educational Version Module File
.mdf
Misc
Translation Memory Data Find File
.mdf
Data
SQL Server Database File
.mdf
Disk
Media Disc Image File
.mdf
Data
Measurement Data Format File
.mdi
Page Layout
Microsoft Document Imaging File
.mdl
Game
Half-Life Model File
.mdl
Audio
DigiTrakker Module
.mdl
3D Image
Warcraft III 3D Model Text File
.mdl
Misc
Flight Simulator Airplane Model
.mdl
Data
Rational Rose Model File
.mdl
Data
Simulink Model File
.mdm
Game
Mario Dash Map File
.mdm
Data
HLM Multivariate Data Matrix File
.mdmp
System
Windows Minidump
.mdn
Data
Blank Access Database Template
.mds
Disk
Alcohol Disc Image Track Data
.mds
Disk
Media Descriptor File
.mdt
Data
Access Database Template
.mdw
Misc
Access Workgroup File
.mdx
Data
Rational XDE Model File
.mdx
3D Image
Warcraft III Model File
.mdx
Data
Multiple Index File
.mdz
Data
Access Wizard Template
.me
Text
Readme Text File
.me2mod
Game
Mass Effect 2 Modification File
.meb
3D Image
PRO100 3D Interior Catalog Element
.med
Audio
Amiga MED Sound File
.med
Developer
RSView Development Project
.mel
Executable
Maya Embedded Language File
.mell
Text
Mellel Word Processing File
.mellel
Text
Mellel Word Processing Document
.mem
Executable
Macro Editor Macro
.mem
System
Parallels Desktop Memory Dump File
.mem
Game
Virtual Game Station Memory File
.mem
Backup
FoxPro Variable File
.mem
Data
Mnemosyne Card Collection
.menc
Data
Windows Mobile Encrypted File
.mer
Developer
RSView Development Runtime File
.mesh
3D Image
3D Mesh Model
.met
Raster Image
Presentation Manager Metafile
.met
Data
eMule Resource File
.meta
Video
RealPlayer Metafile
.metadata_never_index System
Spotlight Never Index File
.mex
Data
Macro Express File
.mf
Developer
Java Manifest File
.mfa
Developer
Multimedia Fusion Development File
.mfo
Data
Perl ModInfo Descriptor File
.mfo
Page Layout
MediaFace Online Saved File
.mfp
Data
Macromedia FlashPaper Document
.mfp
Page Layout
MediaFACE Project File
.mfs
Encoded
MetFS Encrypted File System
.mft
Page Layout
MediaFACE Project Template
.mfx
Plugin
Multimedia Fusion Extension
.mgc
Data
MGCSoft Equation Illustrator File
.mgf
Image
Materials and Geometry Format
.mgl
Game
Age of Empires 2 Replay File
.mgm
Settings
MGCSoft Equation Illustrator Macro
.mgs
Image
MGCSoft Vector Shapes
.mgv
Audio
Yamaha MegaVoice File
.mgv
Video
PSP Video File
.mgx
Game
Rise of Nations Saved Game
.mgx
Game
Age of Empires 2 Expansion Replay File
.mhs
Misc
Hardware Specification File
.mht
Web
MHTML Web Archive
.mhtml
Web
MIME HTML File
.mi4
System
Audio Player Firmware File
.mic
Image
Image Composer File
.mid
Audio
MIDI File
.midi
Audio
MIDI File
.mif
Misc
Management Information Format
.mig
Backup
Windows Migration Backup File
.milk
Plugin
MilkDrop Winamp Plugin Preset
.mim
Encoded
Multi-Purpose Internet Mail Message File
.mime
Encoded
Multi-Purpose Internet Mail Extension
.miniusf
Audio
Nintendo 64 Song File
.mint
Compressed
Linux Mint Installer File
.mio
Executable
MioEngine Application File
.mip
Image
Multiple Image Print File
.mis
Game
Marble Blast Gold Mission File
.mis
Game
Saved Game Mission File
.mission
Game
Vega Strike Mission File
.mix
Game
Command & Conquer Data File
.mix
Image
PhotoDraw Image File
.mix
Raster Image
Picture It! Image File
.mj2
Video
Motion JPEG 2000 Video Clip
.mjp
Video
MJPEG Video File
.mjpg
Video
Motion JPEG Video File
.mk
Developer
Makefile
.mka
Audio
Matroska Audio File
.mkv
Video
Matroska Video File
.mlb
Developer
Visual FoxPro Library
.mlk
Settings
Mastercook Look File
.mlp
Audio
Meridian Lossless Packing Audio File
.mls
Data
Milestones Simplicity File
.mls
Misc
CrystalPlayer Playlist
.mm
Data
FreeMind Mind Map
.mm6
Game
Might and Magic 6 Saved Game
.mm7
Game
Might and Magic 7 Saved Game
.mm8
Game
Might and Magic 8 Saved Game
.mma
Image
Master Album Maker Digital Photo Album
.mmap
Data
MindManager Map File
.mmc
Data
Microsoft Media Catalog
.mme
Encoded
Multi-Purpose Internet Mail
.mmf
Audio
Synthetic Music Mobile Application File
.mmf
Data
Microsoft Message File
.mml
Page Layout
FrameMaker Maker Markup Language File
.mmm
Audio
MAGIX Music Maker File
.mmo
Misc
Memory Map Overlay File
.mmp
Data
MindManager Mind Map
.mmp
Misc
MixMeister Playlist
.mmp
Data
Master Album Maker Project
.mmv
Video
MicroMV Video File
.mnc
Data
My Notes Center Notebook
.mng
Data
Yamaha PSR Disk Manager File
.mng
Raster Image
Multiple Network Graphic
.mnk
Data
My Notes Keeper Notebook
.mnm
3D Image
Character Studio Marker Name File
.mno
Data
Macromedia Design Note
.mnt
Text
FoxPro Menu Memo
.mnv
Video
PlayStation Movie File
.mnx
Misc
FoxPro Menu
.mny
Data
Microsoft Money File
.mo
Developer
Machine Object File
.mo3
Audio
MO3 Audio File
.mobi
Data
Mobipocket eBook
.mod
Audio
Amiga Music Module File
.mod
Developer
Fortran Module File
.mod
Game
Neverwinter Nights Module
.mod
Video
JVC Recorded Video File
.mod
Misc
ArchiCAD Module
.modd
Video
Sony Video Analysis File
.model
3D Image
CATIA 3D Model FIle
.mof
Settings
Managed Object Format File
.moff
Video
Sony Video Analysis Index File
.moho
Data
Anime Studio Animation Project
.moi
Video
MOI Video File
.mom
Developer
Managed Object Model
.moov
Video
Apple QuickTime Movie
.mosaic
Data
MacOSaiX Mosaic File
.mou
Compressed
WinMount Compressed File
.mov
Video
Apple QuickTime Movie
.movie
Video
QuickTime Movie File
.mox
Data
ExtendSim Simulation Software Model
.moz
Web
Mozilla Cache File
.mp
3D Image
Maya PLE Project File
.mp1
Audio
MPEG-1 Layer 1 Audio File
.mp2
Audio
MPEG Layer II Compressed Audio File
.mp21
Video
MPEG-21 Multimedia File
.mp21
Video
AXMEDIS MPEG-21 Object
.mp2m
Game
Max Payne 2 Mod File
.mp2s
Game
Max Payne 2 Saved Game
.mp2v
Video
MPEG-2 Video File
.mp3
Audio
MP3 Audio File
.mp4
Video
MPEG-4 Video File
.mp4v
Video
MPEG-4 Video
.mpa
Audio
MPEG-2 Audio File
.mpb
Backup
MyPhoneExplorer Backup File
.mpc
Audio
Musepack Compressed Audio File
.mpcpl
Misc
Media Player Classic Playlist
.mpd
Data
Microsoft Project Database
.mpd
Data
File List Creator Playlist
.mpdconf
Settings
Music Player Daemon File
.mpe
Video
MPEG Movie File
.mpeg
Video
MPEG Movie
.mpeg4
Video
MPEG-4 File
.mpf
Raster Image
Microsoft Media Package FIle
.mpf
Video
MainActor Project File
.mpg
Video
MPEG Video File
.mpg2
Video
MPEG-2 Video File
.mpga
Audio
MPEG-1 Layer 3 Audio File
.mpj
Data
Minitab Project File
.mpk
Game
Project64 Memory Pack File
.mpkg
Compressed
Meta Package File
.mpl
Video
AVCHD Playlist File
.mpls
Video
Blu-ray Movie Playlist File
.mpm
Game
Max Payne Modfication File
.mpp
Data
Microsoft Project File
.mpq
Game
Blizzard Mo'PaQ File
.mpr
Developer
FoxPro Generated Menu Program
.mps
Misc
Pocket Streets Map File
.mps
Game
Max Payne Saved Game
.mpt
Data
Microsoft Project Template
.mpu
Audio
MPEG Layer 3 Audio File
.mpv
Video
MPEG Elementary Stream Video File
.mpv2
Video
MPEG-2 Video Stream
.mpx
Executable
FoxPro Compiled Menu Program
.mpx
Data
Microsoft Project Exchange File
.mpz
Data
Miradi Project File
.mp_
Audio
Mobile Phone Sound File
.mq4
Data
MetaTrader Custom Indicator
.mqv
Video
Sony Movie Format File
.mrb
Image
Multiple Resolution Bitmap
.mrc
Executable
mIRC Script File
.mrimg
Disk
Macrium Reflect Disk Image
.mrk
Misc
DPOF Auto Print Order File
.mrs
Game
GunZ Game Data File
.mrw
Raster Image
Minolta Raw Image File
.ms
Executable
3ds Max Script File
.ms-tnef
Misc
MS Transport Neutral Encapsulation Format
.ms10
Data
Multisim Circuit Design
.ms3d
3D Image
MilkShape 3D Model
.msc
Data
MuseScore Composition File
.msc
System
Microsoft Management Console Snap-in
Control File
.mscx
Misc
MuseScore Music Score File
.mscz
Misc
MuseScore Compressed Score File
.msdvd
Video
Windows DVD Maker Project File
.mse
Encoded
3ds Max Encrypted MAXScript File
.msf
Misc
Mail Summary File
.msf
Settings
Miranda IM Skin File
.msg
Text
Outlook Mail Message
.msh
Video
Visual Communicator Project File
.msi
Misc
Windows Installer Package
.msk
Image
Paint Shop Pro Mask
.mskn
Settings
MediaMonkey Skin File
.msm
Settings
Windows Installer Merge Module
.msn
Settings
Host Blocking File
.mso
Misc
Inline E-mail Attachment
.mso
Misc
Microsoft Office Macro Reference File
.msp
Raster Image
Microsoft Paint Bitmap Image
.msp
Developer
MaxScript Page File
.msp
System
Windows Installer Patch
.mspx
Web
Microsoft ASP.NET Web Page
.mss
Misc
Software Specification File
.msstyle
System
Windows XP Unsigned Style
.msstyles
System
Windows XP Style
.mst
Executable
Windows SDK Setup Transform Script
.mst
Settings
Corel Presentations Master Template File
.msu
Misc
Windows Vista Update Package
.msv
Audio
Memory Stick Voice File
.mswmm
Video
Windows Movie Maker Project
.mt2
Audio
MadTracker 2 Module
.mtd
Misc
Musicnotes Digital Sheet Music File
.mte
Audio
MadTracker 2 Envelope
.mtf
Misc
MasterCook Tips
.mtf
Misc
Translation Memory Translations File
.mtf
Settings
Motorola Theme File
.mth
Data
Derive Math File
.mti
Audio
MadTracker Instrument
.mtm
Audio
MultiTracker Module
.mtp
Audio
MadTracker 2 Pattern
.mts
Video
AVCHD Video File
.mts
Audio
MadTracker 2 Sample File
.mtv
Video
MTV Video Format File
.mtw
Data
Minitab Worksheet File
.mtx
Plugin
MadTracker 2 Extension
.mtx
3D Image
MetaStream Scene File
.mtz
3D Image
Compressed MetaStream Scene File
.mud
Data
Textease Multi User Database
.muf
Data
Alpha Five Licence File
.mui
System
MultiLanguage Resource File
.mum
System
Windows Vista Update Package
.mus
Game
Playstation 2 Music File
.mus
Audio
Finale Notation File Format
.mvb
Video
Multimedia Viewer Book Source File
.mvc
Video
Movie Collector Catalog
.mvd
Video
Movie Edit Pro Video Project
.mve
Video
Infinity Engine Movie File
.mvi
Misc
AutoCAD Movie Command File
.mvs
Misc
Project Language and Simulation File
.mvx
Developer
Multimedia Fusion Movement Extension
.mw
Data
Maple Worksheet
.mw
Text
MacWrite Text Document
.mwd
Text
MarinerWrite Document
.mwf
Misc
Translation Memory Word Find File
.mwf
Data
MapGuide Author Map Window File
.mwp
Text
Lotus Word Pro SmartMaster File
.mws
Audio
MWave DSP Synth Instrument Extract
.mws
Data
Maple Classic Worksheet
.mwx
Settings
MapGuide Author Map Window XML File
.mwx
Data
MicroWorlds EX File
.mxc2
Data
MAGIX Cache File
.mxd
Data
ArcGIS Map Document
.mxe
Executable
Macro Express Playable Macro
.mxf
Video
Material Exchange Format File
.mxl
Misc
Compressed MusicXML File
.mxml
Developer
Flex MXML Component
.mxp
Plugin
Macromedia Extension
.myapp
Developer
Visual Studio Application XML File
.myd
Data
MySQL Database Data File
.mydocs
System
Send To My Documents
.myi
Data
MySQL MyISAM Index File
.mzp
Audio
Mozart Percussion File
.mzp
Compressed
MAXScript Zip Package
N File Extensions
File types with extensions that start with the letter N.
Extension
File Type
File Description
.n-gage
Game
N-Gage Application
.n3pmesh
Game
Knight Online 3D Mesh File
.n64
Game
Nintendo 64 Emulator ROM File
.nap
Audio
Napster Secured Music File
.nap
Vector Image
NAP Metafile
.nav
Game
Counter-Strike Bot Navigation File
.nav
Image
MSN Application Extension
.nav2
Misc
WinAVI Temporary Navigation File
.nb
Data
Mathematica Notebook
.nb7
Backup
NovaBACKUP Output File
.nba
Backup
Nero BackItUp Archive
.nbf
Backup
Backup Now Archive
.nbf
Backup
Nokia Backup File
.nbi
Backup
Nero BackItUp Information File
.nbk
Backup
NovaBACKUP Backup Script
.nbu
Backup
Nokia Phone Backup File
.nc
Data
Mastercam Numerical Control File
.ncd
Disk
NTI CD-Maker Disc Image
.ncd
Image
Nero Cover Designer Document
.ncf
Game
No Cache File
.nch
Misc
Outlook Express Folder File
.nco
Backup
Nero BackItUp File
.ncor
Video
Adobe Encore Project File
.ncr
Raster Image
NCR Image
.nd
Settings
QuickBooks Network Data File
.ndb
Data
ClamAV Extended Signature File
.ndc
Settings
Personal Communications Settings File
.ndf
Data
SQL Server Secondary Database File
.ndk
Data
Lotus Notes Design Elements File
.nds
Game
Nintendo DS Game ROM
.ndx
Data
dBASE Index File
.nef
Raster Image
Nikon Electronic Format RAW Image File
.neo
Image
NeoChrome Bitmap Image
.nes
Game
Nintendo (NES) ROM File
.net
Data
netViz Project File
.net
Plugin
FileMaker Networking Module
.neta
Data
Netica Binary File
.neu
3D Image
Pro/ENGINEER Neutral File
.nff
Image
Neutral File Format
.nfi
Disk
Dreambox Disc Image
.nfo
Game
Age of Empires Player File
.nfo
Data
Folio Views Infobase File
.nfo
Text
Warez Information File
.nfo
System
System Information File
.ngage
Game
N-Gage Game File
.nib
Developer
Interface Resources
.nick
Misc
Outlook 2000 Nickname File
.nif
Image
Gamebryo Image
.nitf
Data
National Imagery Transmission Format File
.njb
Misc
Nikon Photo Index File
.nji
Settings
Nero Job Information File
.nk2
Misc
Outlook 2002 Nickname File
.nki
Audio
KONTAKT Instrument File
.nls
System
Microsoft National Language Support File
.nltrack
Game
NoLimits Roller Coaster Track File
.nmind
Data
NovaMind Mind Map File
.nn
Disk
Nero CD File List
.not
Data
Notation File
.notebook
Data
SMART Notebook File
.notes
Text
Memento Notes File
.now
Text
Readme File
.np
Data
Portfolio NetPublish File
.npl
Data
Nokia Playlist File
.npp
Page Layout
Art Explosion Publisher Pro Document
.npr
Data
Nuendo Project File
.npt
Data
Portfolio NetPublish Template
.nra
Audio
Nero Audio Compilation
.nrg
Disk
Nero CD/DVD Image File
.nri
Disk
Nero ISO CD Compilation File
.nrl
Data
Autonomy Interwoven Link File
.nrs
Backup
NovaBACKUP Restore Script
.nrt
Audio
Nokia Ringtone
.nrw
Raster Image
Nikon Raw Image File
.ns2
Data
Lotus Notes 2 Database
.ns3
Data
Lotus Notes 3 Database
.ns4
Data
Lotus Notes 4 Database
.nsa
Audio
Nullsoft Streaming Audio File
.nsbca
Game
Nintendo DS Model Animation File
.nsbmd
Game
Nintendo DS Model File
.nsbtx
Game
Nintendo DS Model Texture File
.nsf
Audio
NES Sound Format File
.nsf
Data
Lotus Domino Database
.nsf
Data
Lotus Notes Database
.nss
Misc
Magnetic Screensaver File
.nst
Audio
NoiseTracker Module
.nsv
Video
Nullsoft Streaming Video File
.nt
System
Windows NT Startup File
.ntc
Image
Nikon Capture Custom Curves
.ntf
Image
MediaFace II CD Label
.nth
Misc
Nokia Series 40 Theme File
.ntn
Audio
NOTION Song File
.ntrk
Game
Pacific FIghters Online Track File
.nts
Settings
Lotus Notes Traveler Server Config File
.ntx
Data
Clipper Index File
.numbers
Data
Numbers Spreadsheet File
.nup
Misc
Smart Security Update File
.nvc
Video
NeroVision Express Project File
.nvc
Settings
Nikon Vignette Correction File
.nvl
Data
UniChem Results File
.nwc
Audio
NoteWorthy Composer File
.nwctxt
Text
NoteWorthy Composer Text File
.nwm
Misc
Sony NWM Display Screen File
.nwp
Misc
Magnetic Wallpaper File
.nwv
Settings
Dragon NaturallySpeaking User Archive
.nxc
Developer
NXC Source Code File
.nxg
Web
eSite Builder NXG Web Page
.ny
Plugin
Nyquist Plug-in
.nyf
Data
myBase Database File
.nzb
Web
NewzBin Usenet Index File
O File Extensions
File types with extensions that start with the letter O.
Extension
File Type
File Description
.o
Developer
Compiled Object File
.oab
Data
Offline Address Book
.oar
Compressed
OpenSimulator Archive
.ob!
Misc
Orbit Downloader Incomplete Download
.obi
Settings
Outlook RSS Subscription File
.obj
Data
Relocatable Object Code
.obj
3D Image
3D Object File
.obs
Executable
ObjectScript Script File
.obz
3D Image
Compressed 3D Object File
.oca
Developer
Custom Control Library Type File
.oce
Settings
Open Catalog Extension Connection File
.ocr
Text
FAXGrapper Fax Text File
.ocx
Developer
ActiveX Control
.odb
Data
ABAQUS Database
.odc
Image
OpenDocument Chart
.odf
Misc
OpenDocument Formula
.odf
Data
Open Document File
.odg
Image
OpenDocument Graphic
.odi
Image
OpenDocument Image
.odif
Image
Open Document Interchange Format
.odm
Text
OpenDocument Master Document
.odm
Audio
OverDrive Media File
.odo
Text
Online Operating System Write Document
.odp
Data
OpenDocument Presentation
.ods
Misc
Outlook Express 5 Mailbox
.ods
Data
OpenDocument Spreadsheet
.odt
Text
OpenDocument Text Document
.odx
Data
BizTalk Server Orchestration File
.oeaccount
Data
Windows Mail Account File
.oeb
Backup
Outlook Express Backup Wizard File
.oem
Settings
OEM Setup File
.ofc
Data
Open Financial Connectivity File
.off
3D Image
Object File Format
.ofl
Text
Ots File List
.ofm
Data
OmniForm Form
.oft
Data
Outlook File Template
.ofx
Data
Open Financial Exchange File
.oga
Audio
Ogg Vorbis Audio File
.ogg
Audio
Ogg Vorbis Compressed Audio File
.ogm
Video
Ogg Media File
.ognc
Web
Dynamic Web Page
.ogv
Video
Ogg Vorbis Video File
.ogx
Video
Ogg Vorbis Multiplexed Media File
.okt
Audio
Oktalyzer Module
.ola
Page Layout
Online Access File
.olb
Misc
OLE Object Library
.old
Backup
Backup File
.oma
Audio
Sony OpenMG Music File
.omcs
Data
Office Manager Access File
.omf
Raster Image
OMF Interchange Image File
.omf
Audio
Open Media Framework File
.omg
Audio
OpenMG Audio File
.omo
Developer
OMake Object File
.omp
Data
Office Manager Document Archive
.omx
Audio
OtsAV Media Library Information File
.ond
Data
Lotus Notes Encapsulated Memo File
.one
Data
OneNote Document
.onepkg
Backup
Microsoft OneNote Package File
.oo3
Data
OmniOutliner 3 File
.opd
Page Layout
OmniPage Document
.openbsd
Text
OpenBSD Readme File
.opf
Image
FlipAlbum File
.opf
Data
FlipViewer FlipBook File
.opml
Text
OPML File
.ops
Settings
Office Profile Settings File
.opt
Settings
Options File
.opx
Data
FlipAlbum Photo Album File
.opx
Data
OrgPlus Org Chart
.or2
Data
Lotus Organizer 2 File
.or3
Data
IBM Lotus Organizer 97 File
.or4
Data
IBM Lotus Organizer 97 GS File
.or5
Data
Lotus Organizer 5 File
.or6
Data
Lotus Organizer 6 File
.orf
Raster Image
Olympus RAW File
.org
Data
Lotus Organizer File
.ori
Backup
Original File
.ort
Text
Rich Text Editor Document
.orx
Data
RadiantOne VDS Database Schema
.ost
Misc
Outlook Offline Folder File
.osx
Executable
PowerPC Executable File
.osz
Game
Osu! Beatmap File
.ota
Image
OTA Bitmap
.otb
Image
Nokia Over The Air Bitmap
.otc
Image
OpenDocument Chart Template
.otf
Misc
OpenDocument Formula Template
.otf
Data
OpenTuft Tufting Design File
.otf
Font
OpenType Font
.otg
Image
OpenDocument Graphic Template
.oth
Web
OpenDocument HTML Template
.oti
Image
OpenDocument Image Template
.otl
Data
NoteTab Outline File
.otln
Data
Opal Outline File
.otp
Misc
OpenDocument Presentation Template
.ots
Data
OpenDocument Spreadsheet Template
.ots
Audio
OtsAV Album File
.ott
Text
OpenDocument Text Document Template
.out
Data
Output File
.ov2
Data
TomTom Points of Interest Database
.ova
Data
Open Virtual Appliance
.ova
Data
Octava Musical Score
.ove
Audio
Overture Musical Score
.ovf
Data
Open Virtualization File
.ovl
Game
Rollercoaster Tycoon 3 Sprites File
.ovpn
Settings
OpenVPN Configuration File
.ovw
Image
Cubase WAVE File Overview
.owc
Game
OutWit Catch Database
.owg
Misc
OutWit Gear Database
.owl
Developer
OWL Source Code File
.owm
Misc
OutWit XML Mashup File
.oxt
Plugin
OpenOffice.org Extension
.oyx
Backup
Approach Alternate Database Index
P File Extensions
File types with extensions that start with the letter P.
Extension
File Type
File Description
.p
Developer
Pascal Source Code
.p
Developer
Python Pickle File
.p01
Disk
GEAR CD/DVD Disc Image
.p01
Disk
Toast CD Image
.p12
Web
Personal Information Exchange
.p21
3D Image
Express STEP Data Model File
.p2m
Settings
PhotoWorks Appearance File
.p2m
Game
Gameshark PlayStation 2 Cheats file
.p2p
Misc
FolderShare Placeholder File
.p2z
3D Image
Compressed Poser Pose File
.p3d
3D Image
Peak3D 3D Graphics File
.p3t
Game
PlayStation 3 Theme File
.p65
Page Layout
PageMaker 6.5 Document
.p7b
System
PKCS #7 Certificate File
.p7m
Compressed
Digitally Encrypted Message
.p7s
Text
Digitally Signed Message
.p96
Data
Win96 Database File
.p97
Data
Win97 Database File
.pa
Page Layout
Print Artist Project
.pab
Data
Personal Address Book
.pac
Raster Image
STAD Graphic File
.pac
Web
Proxy Auto-Config File
.pac
Audio
SBStudio II Song File
.pack
Encoded
Pack200 Packed Jar File
.pack.gz
Compressed
Pack200 Compressed Archive
.package
Game
The Sims 2 Package File
.package
Compressed
Linux Autopackage File
.pae
Compressed
PowerArchiver Encrypted Archive
.paf
Executable
Portable Application Installer File
.paf
Data
Personal Ancestral File
.paf.exe
Executable
PortableApps.com Program File
.pages
Text
Pages Document
.pak
Compressed
PAK (Packed) File
.pal
Image
Dr. Halo Color Palette
.pan
Data
Panorama Database File
.pando
Misc
Pando File
.panic
System
Kernel Panic File
.pap
Raster Image
PanoramaStudio Project File
.pap
Misc
Corel Painter Paper Texture
.paq
Backup
Hewlett-Packard Software Restore File
.paq6
Compressed
PAQ6 Data Archive
.paq7
Compressed
PAQ7 Data Archive
.paq8
Compressed
PAQ8 Data Archive
.par
3D Image
Solid Edge Part File
.par
Compressed
Parchive Index File
.par
Video
Dedicated Micros DVR Recording
.par2
Compressed
Parchive 2 Index File
.part
Misc
Partially Downloaded File
.partimg
Disk
Partimage File
.pas
Developer
Pascal Source File
.pat
Image
3D Patch File
.pat
Audio
Gravis UltraSound GF1 Patch File
.pat
Raster Image
Pattern File
.pb
Developer
PureBasic Source File
.pbb
Backup
AT&T Phonebook File
.pbd
Data
ProBID+ Data File
.pbf
Audio
Pinnacle Sample Bank
.pbi
Compressed
PC BSD Installer Package
.pbm
Raster Image
Portable Bitmap Image
.pbp
Game
PSP Firmware Update File
.pbproj
Developer
Project Builder Project
.pc
Data
Personal Composer File
.pc1
Raster Image
Degas Elite Low Res Image File
.pc2
Raster Image
Degas Elite Medium Res Image File
.pc3
Raster Image
Degas Elite High Res Image File
.pc3
Settings
AutoCAD Plotter Configuration File
.pc6
Vector Image
PowerCADD 6 Drawing File
.pc7
Vector Image
PowerCADD 7 Drawing File
.pca
Audio
Perfect Clarity Audio
.pcap
Data
Packet Capture Data
.pcb
Data
Printed Circuit Board Design File
.pcc
Game
Mass Effect 2 Package
.pcd
Raster Image
Kodak Photo CD Image File
.pcf
Backup
PaintCAD Font
.pcg
Audio
Korg Instrument Bank File
.pch
Developer
Precompiled Header File
.pcm
Audio
Pulse Code Modulation
.pcr
Data
PCMark Vantage Benchmark File
.pct
Page Layout
Picture File
.pcv
Compressed
Mozilla Profile Backup
.pcx
Raster Image
Paintbrush Bitmap Image File
.pd
Image
FlexiSIGN 5 Plotter Document
.pd4
Data
Windows Live Photo Gallery Information File
.pd5
Data
Windows Live Photo Gallery Information File
.pdas
Data
PDAStore Data Store File
.pdb
Data
Program Database
.pdb
Data
Protein Data Bank File
.pdb
Data
Palm Desktop Database File
.pdb
Backup
PowerDesigner Database Backup File
.pdc
Encoded
Lizard Safeguard Secure PDF File
.pdd
Raster Image
Adobe PhotoDeluxe Image
.pdd
Data
Medtronic Programmer Data File
.pdf
Page Layout
Portable Document Format File
.pdg
Image
Print Designer GOLD File
.pdi
Disk
InstantCopy Disc Image
.pdl
Developer
Perl Data Language File
.pdm
Developer
VB Project Information File
.pdm
Data
PowerDesigner Database File
.pdn
Raster Image
Paint.NET Image File
.pdr
System
Windows Port Driver
.pds
Video
PowerDirector Project File
.pds
Data
Planetary Data System File
.pdx
Data
Adobe Acrobat Index File
.pdx
Data
Product Data eXchange File
.pe4
Raster Image
PhotoImpact Image Archive
.pe4
Raster Image
Photo Explorer Thumbnail Archive
.pea
Compressed
PEA File Archive
.peak
Audio
Steinberg Peak File
.peb
Data
ProEST+ Buildings File
.pec
Data
Brother Embroidery File
.pef
Raster Image
Pentax Electronic File
.peg
Game
Peggle Replay File
.pegn
Game
Peggle Nights Replay File
.pem
Web
Privacy Enhanced Mail Certificate
.pen
Settings
Paint Shop Pro Pen Preset File
.pep
Data
TurboProject Project File
.pes
Misc
Brother Embroidery Format
.pet
Compressed
Puppy Linux Install Package
.pex
Executable
ProBoard Executable File
.pex
Data
Merak Peep Data File
.pf
Data
Windows Prefetcher File
.pf
Compressed
Private File
.pfa
Font
Printer Font ASCII File
.pfb
Font
Printer Font Binary File
.pfc
Data
AOL Personal File Cabinet
.pff
Page Layout
Formatta Portable Form File
.pfg
Developer
jEEPers Program Configuration File
.pfl
Data
Family Lawyer Document
.pfl
Page Layout
PDFill Project File
.pfl
Plugin
PhotoFiltre Plugin
.pfm
Font
Printer Font Metrics File
.pfr
Image
Paint Shop Pro Picture Frame
.pfr
Font
Portable Font Resource File
.pfx
Text
First Choice Word Processing Document
.pfx
System
PKCS #12 Certificate File
.pgi
Video
Video Recording File
.pgm
Raster Image
Portable Gray Map Image
.pgn
Game
Portable Game Notation File
.pgp
Misc
PGP Security Key
.ph
Developer
Perl Header File
.ph
Settings
AOL Phone Home Settings File
.phb
Data
Motorola Phone Book File
.phb
Settings
PhtotoBase Album File
.phm
Data
Pro Home Manager Data File
.phn
Game
Algodoo Phun Phunlet
.php
Web
Hypertext Preprocessor File
.php3
Web
PHP 3 Web Page
.php4
Web
PHP 4 Web Page
.php5
Web
PHP 5 Web Page
.phtm
Web
PHP-Based Web Page
.phtml
Web
PHP Web Page
.phy
Audio
PhyMod Physical Modeling Data
.phya
Game
Aleph One Physics File
.phz
Game
Algodoo Phun Compressed Phunlet
.pi
Data
Pi Calculation Data File
.pi1
Raster Image
Degas Low Resolution Image File
.pi2
Raster Image
Portrait Innovations Photo
.pi2
Raster Image
Degas Medium Resolution Image File
.pi3
Raster Image
Degas High Resolution Image File
.pi4
Image
DEGAS Image
.pi5
Image
DEGAS Image
.pi6
Image
DEGAS Image
.pic
Image
Houdini Raster Image
.pic
Raster Image
Generic Picture File
.pic
Image
QuickTime PICT Image
.picnc
Image
Houdini 3D Compositing Image
.pict
Raster Image
Picture File
.pictclipping
Image
Picture Clipping
.pid
System
Creative Driver File
.pid
Misc
Process ID
.pie
Settings
GlovePIE Controller Script
.pif
Executable
Program Information File
.pig
Game
Descent Texture File
.pig
Game
Pirates of the Burning Sea Data File
.pim
Compressed
PIM Archive
.pip
Settings
Office Personalized Settings File
.pis
Data
PS2DIS Project File
.pit
Compressed
PackIt Compressed Archive
.piv
Video
Pivot Stickfigure Animation
.pix
Image
Alias PIX Image
.pix
Raster Image
BRL-CAD Raw Image File
.piz
Compressed
Zipped File
.pjt
Text
FoxPro Project Memo
.pjx
Data
FoxPro Project
.pk
Audio
Audition Peak File
.pk2
System
Silkroad Online Game Data File
.pk3
Game
Id Software Game Mod File
.pka
Data
Packet Tracer Activity File
.pkb
Data
Oracle Package Body File
.pkg
Compressed
Mac OS X Installer Package
.pkg
3D Image
CoCreate OneSpace Modeling Package File
.pkg
Game
PlayStation Store Downloaded Package
.pkg
Settings
Symbian Package File
.pkh
Data
Oracle Package File
.pkm
Game
Pokemon Saved Game Data File
.pks
Data
Oracle Package Spec File
.pkt
Data
Packet Tracer Network Simulation Model
.pl
Developer
Perl Script
.pl
Developer
Prolog Source Code File
.pl
Vector Image
Unix Color Plot File
.pl0
3D Image
3D Home Architect Foundation Floor Plan
.pl1
Developer
PL/I Source Code
.pl1
Game
Adventure Maker Plug-in
.pl1
3D Image
3D Home Architect Floor Plan
.pl2
3D Image
3D Home Architect Second Level Floor Plan
.pla
Audio
Sansa Playlist File
.pla
Misc
iriver iQuickList File
.pla
3D Image
ArchiCAD Project Archive
.playlist
Video
CyberLink PowerDVD Playlist
.playset
Misc
Souptoys Playset File
.plc
Developer
PL/B Source File
.ple
Developer
Messenger Plus! Live Encrypted Log File
.plg
Plugin
Sibelius Plug-in
.pli
Developer
PL/I Source Code File
.plist
Settings
Mac OS X Property List File
.pln
Data
Spaceman Planogram File
.pln
3D Image
ArchiCAD Project File
.pln
Game
Flight Simulator Flight Plan
.pln
Plugin
InDesign Plug-in
.pls
Audio
Audio Playlist
.pls
Settings
PicoLog Settings File
.plsc
Executable
Messenger Plus! Live Script File
.plsk
Misc
Messenger Plus! Live Skin Pack
.plt
Vector Image
AutoCAD Plotter Document
.plt
Vector Image
HPGL Plot File
.plugin
Plugin
Mac OS X Plug-in
.plw
Data
PicoLog Data File
.plx
Executable
Perl Executable File
.ply
Image
Polygon Model File
.pm
Developer
Perl Module
.pm
Raster Image
Unix XV Graphic File
.pm3
Raster Image
PageMaker 3 Document
.pm4
Page Layout
PageMaker 4 Document
.pm5
Page Layout
PageMaker 5.0 Document
.pm6
Page Layout
PageMaker 6.0 Document
.pmc
Settings
Performance Monitor Counter File
.pmd
Page Layout
PageMaker Document
.pmf
Video
PSP Movie File
.pmg
Vector Image
PageMaker Group File
.pmj
Settings
Pegasus Mail Configuration File
.pmo
Misc
Pegasus Saved Message File
.pmo
Data
Broderbund Print Meta Object File
.pmp
Settings
AutoCAD Plot Model Parameter File
.pmr
Data
Performance Monitor Report
.pna
Audio
PhatNoise Audio File
.pnf
Misc
Precompiled INF File
.png
Raster Image
Portable Network Graphic
.pni
Raster Image
Popnoggin Image File
.pnproj
Data
Programmer's Notepad Project File
.pnpt
Data
Programmer's Notepad Project Template
.pns
Data
Popnoggin Subject File
.pnt
Data
Popnoggin Theme File
.pnt
Raster Image
MacPaint File
.pntg
Raster Image
MacPaint Graphic File
.pnz
Misc
Panorama Database Set
.po
Developer
Portable Object
.pod
Data
OpenProj Project File
.pod
Game
Terminal Reality Game Data File
.pod
Developer
Perl POD File
.pof
Game
Descent Robot Definition File
.pog
Game
Descent 2 Texture Modification
.poi
Data
Magellan Maestro Point of Interest File
.pol
System
Windows Policy File
.pom
Developer
Maven Build File
.pos
Data
Trimble Position File
.postal
Data
TomTom Postal Code File
.pot
Data
PowerPoint Template
.pot
Developer
Portable Object File
.potm
Data
PowerPoint Open XML Macro-Enabled Presentation
Template
.potx
Data
PowerPoint Open XML Presentation Template
.pov
Image
POV-Ray Raytracing Format
.pov
Image
Prolab Object File
.pp2
Data
PingPlotter Data File
.pp2
3D Image
Poser Prop File
.pp4
Raster Image
Picture Publisher Bitmap File
.pp5
Raster Image
Picture Publisher 5 Image File
.ppa
Plugin
PowerPoint Add-in
.ppam
Plugin
PowerPoint 2007 Add-In
.ppd
System
PostScript Printer Description File
.ppf
Data
Transit NXT Pack Project File
.ppf
Raster Image
Picture Publisher Image File
.ppf
Misc
Paint Shop Pro Soft Plastic Preset File
.ppf
Data
Publisher Project File
.ppf
Game
PlayStation Patch Format File
.ppf
Data
Edgecam Pathtrace Part File
.ppl
Developer
Free Pascal Dynamic Library
.ppm
Raster Image
Portable Pixmap Image File
.ppm_b
Misc
Nokia PPM Flash File
.ppp
Page Layout
Page Plus Publication
.pps
Data
PowerPoint Slide Show
.ppsm
Misc
PowerPoint Open XML Macro-Enabled Slide Show
.ppsx
Data
PowerPoint Open XML Slide Show
.ppt
Data
PowerPoint Presentation
.pptm
Data
PowerPoint Open XML Macro-Enabled Presentation
.pptx
Data
PowerPoint Open XML Document
.ppu
Developer
Free Pascal Unit File
.ppx
Page Layout
PagePlus Template File
.ppz
3D Image
Compressed Poser Prop File
.pqhero
Game
Puzzle Quest Saved Game
.pqi
Disk
PowerQuest Drive Image
.pra
Settings
Windows Media 9 Plug-in Profile File
.prb
Misc
xyAlgebra Probabilities File
.prc
Data
Mobipocket eBook File
.prc
3D Image
Product Representation Compact File
.prc
Misc
Corel Presentation
.prc
Executable
Palm Resource Code File
.pre
Data
Lotus Freelance Graphics File
.pref
Settings
Macintosh Preferences File
.prefpane
System
Mac OS X System Preference Pane
.prel
Video
Premiere Elements Project File
.prf
Data
Plot Station Plot Request File
.prf
Settings
Outlook Profile File
.prf
Settings
Director Preferences File
.prf
System
Windows System File
.prf
Settings
ClarisWorks Preference File
.prf
Settings
FileNet eForms Form Preferences File
.prg
Executable
FoxPro Program
.prg
Developer
RAPID Program File
.prg
Executable
Program File
.prg
Audio
Akai MPC2000 Program File
.prg
Audio
WAVmaker Program File
.prj
Data
AIMMS Project File
.prj
Data
Project File
.prk
Game
Thrillville Park File
.prm
Plugin
Premiere Plug-in
.prm
Data
Route 66 Map File
.prn
Page Layout
Printable File
.pro
Video
ProPresenter Export File
.profimail
Settings
ProfiMail Settings File
.propdesc
Settings
Property Description
.properties
Settings
Java Properties File
.prproj
Video
Premiere Pro Project
.prs
Data
Harvard Graphics Presentation
.prs
Settings
Batch & Print Pro Printer Settings File
.prs
Misc
PlayStation Radio Player Location
.prt
Misc
Presentations Template
.prt
3D Image
Unigraphics Part File
.prt
3D Image
Pro/ENGINEER Part File
.prt
3D Image
Solid Edge Part File
.prt
Text
Crypt Edit Protected Text Format File
.prt
System
Printer Driver File
.prt
Text
Printer Output File
.prw
Raster Image
Artlantis Shader Preview File
.prx
Settings
Windows Media Profile
.prx
Game
PSP Plugin File
.ps
Vector Image
PostScript File
.ps1
Executable
Windows PowerShell Cmdlet File
.psa
3D Image
Unreal Engine Skeletal Animation File
.psa
Data
Photoshop Album Catalog
.psa
Backup
Plesk Backup File
.psar
Misc
PSP Update File
.psb
Raster Image
Photoshop Large Document Format
.psd
Raster Image
Photoshop Document
.psf
Audio
Portable Sound File
.psf
Data
GPS Prediction Support File
.psf
Raster Image
PhotoStudio File
.psf
Data
SPI Proxy Output File
.psf
Settings
Photoshop Proof Settings File
.psf
Misc
HP-UX Product Specification File
.psf
Data
PID Script File
.psg
Page Layout
Page Segment File
.psh
Video
Photodex Slide Show
.psi
Misc
PrimalScript Online Help Shortcut
.psid
Vector Image
PostScript Image Data File
.psk
3D Image
Unreal Engine Skeletal Mesh File
.psm
Audio
Protracker Studio Module
.psm
Data
Prism Document
.psm
3D Image
Solid Edge Sheet Metal File
.psp
Web
PL/SQL Server Page
.psp
Raster Image
Paint Shop Pro Image File
.pspd
Data
PhotoSuite 5 Project File
.pspimage
Image
Paint Shop Pro Image
.pss
Game
Playstation 2 Game Video File
.pss
Misc
Picture and Sound Show File
.pst
Data
Outlook Personal Information Store File
.psv
Game
Playstation 2 Save File
.psw
Text
Pocket Word Document
.psw
Misc
Windows Password Reset Disk File
.ptb
Data
Power Tab File
.ptf
Audio
Pro Tools 7 Session File
.ptf
Settings
PSP Theme File
.ptf
Data
Scrapbook Flair Template
.ptg
Raster Image
ArtRage Painting
.pth
Misc
4D Path Document
.ptk
Data
Quicken Online Financial Data File
.ptl
Developer
Rational Rose Petal File
.ptm
Audio
PolyTracker Module
.ptm
Data
MapPoint Map File
.ptn
Data
PaperPort Thumbnail File
.ptr
Misc
Desktop Flash Intro Project File
.pts
Audio
Pro Tools Session
.ptt
Data
MapPoint Map Template
.ptx
Raster Image
Paint Shop Pro Texture File
.ptx
Raster Image
Pentax RAW Image File
.ptx
Page Layout
E-Transcript File
.ptz
Data
E-Transcript Bundle File
.pub
Page Layout
Publisher Document
.pub
Web
Public Key File
.pup
Compressed
Puppy Linux DotPup Installer Package
.pup
Compressed
PlayStation 3 Update File
.puz
Compressed
Packed Publisher File
.pva
Video
PVA Video File
.pvc
Backup
Parallels Desktop Copied Configuration File
.pvc
Audio
Panasonic VM1 Voice File
.pvd
Executable
Instalit Script
.pvj
Text
ProofVision Job Ticket
.pvl
Data
Instalit Library
.pvm
Text
Photo Video Manifest File
.pvm
Disk
Parallels Virtual Machine
.pvm
Misc
HP Photo Album
.pvr
Raster Image
POWERVR Texture File
.pvr
Video
Wintal PVR Video File
.pvs
Settings
Parallels Desktop Configuration File
.pwa
Compressed
Password Agent File
.pwc
Executable
PictureTaker File
.pwd
Data
Solid Edge Weldment Document
.pwf
Game
Counter-Strike PODBot Waypoint File
.pwi
Text
Pocket Word Document
.pwl
System
Windows Password List
.pwn
Developer
Pawn Source Code File
.pwp
Raster Image
PhotoWorks Image File
.pwrep
Misc
Password Repository File
.pws
Image
Print Workshop Image
.px
Raster Image
Pixel Image File
.pxc
Data
Photodex Cache File
.pxf
Data
Transit XV Pack Project File
.pxi
Disk
PlexTools Disc Image
.pxj
Data
RecordNow Project
.pxl
Data
Pocket Excel File
.pxm
Raster Image
Pixelmator Image File
.pxp
Game
Counter-Strike PODBot Experience File
.pxr
Raster Image
Pixar Image File
.pxv
Video
Pixbend Media File
.py
Developer
Python Script
.pyc
Executable
Python Compiled File
.pyd
Developer
Python Dynamic Module
.pym
Developer
PYM Macro Preprocessor File
.pyo
Executable
Python Optimized Code
.pyw
Developer
Python GUI Source File
.pz2
3D Image
Poser Pose File
.pz3
3D Image
Poser Scene File
.pzl
Game
Tibo Jigs@w Puzzle File
.pzp
Game
Tibo Jigs@w Compressed Puzzle File
.pzp
Raster Image
PhotoSuite Project File
.pzz
3D Image
Compressed Poser Scene File
Q File Extensions
File types with extensions that start with the letter Q.
Extension
File Type
File Description
.q07
Data
QuickTax 2007 Tax Return
.q08
Data
QuickTax 2008 Tax Return
.q09
Data
QuickTax 2009 Tax Return
.q1q
Plugin
LunarCell Photoshop Plug-in
.q2q
Plugin
Flexify Photoshop Plug-in
.q3d
Data
Quest3D Project File
.q4q
Plugin
Solar Cell Photoshop Plug-in
.q5r
Plugin
Melancholytron Photoshop Plug-in
.q7q
Plugin
India Ink Photoshop Plug-in
.q8r
Plugin
Flood Photoshop Plug-in
.q9r
Plugin
Glitterato Photoshop Plug-In
.q9s
Plugin
Mr. Contrast Photoshop Plug-In
.qbb
Backup
QuickBooks Backup File
.qbk
Backup
QuickTax Backup File
.qbm
Backup
QuickBooks Portable Company File
.qbo
Web
QuickBooks Online Banking Statement File
.qbw
Data
QuickBooks Data File
.qbx
Backup
QuickBooks Accountant Transfer File
.qcp
Audio
PureVoice Audio File
.qda
Compressed
Quadruple D Archive
.qdat
Data
QuickTime Install Cache File
.qdf
Data
Snapform File
.qdf
Page Layout
Label Matrix Label Design
.qdf
Data
Quicken Data File
.qdfm
Data
Quicken Data File (Macintosh)
.qdl
Text
QDL Program
.qdp
Data
Quick and Dandy Plotter File
.qdp
Game
MPQDraft Plugin File
.qel
Data
Quicken Electronic Library
.qf
Settings
Nokia Maps Version File
.qf
Web
Qompose Web Page Template
.qfx
Data
Quicken Financial Exchange File
.qic
Backup
Windows Backup File
.qif
Image
QuickTime Image File
.qif
Data
Quicken Interchange Format File
.qit
Executable
QIT Trojan Horse File
.qlgenerator
Plugin
Quick Look Generator File
.qpb
Data
Quicken Payroll File
.qpf
Data
Quest3D Project
.qpf
Data
Quartus II Project File
.qph
Data
Quicken Price History File
.qpm
Data
Quick Pallet Maker Input Data
.qpr
Developer
FoxPro Generated Query Program
.qpw
Data
Quattro Pro Spreadsheet
.qpx
Executable
FoxPro Compiled Query Program
.qpx
Plugin
QuickTime Player Extension
.qrm
Web
Qworum Message File
.qrp
Data
QuSoft QuickReports File
.qsd
Data
Quicken Data File
.qsf
Backup
Qualtrics Survey File
.qss
Settings
Qt Style Sheet
.qt
Video
Apple QuickTime Movie
.qtch
Video
QuickTime Cache File
.qti
Raster Image
QuickTime Image File
.qtif
Raster Image
QuickTime Image File
.qtl
Video
QuickTime Link File
.qtp
Settings
QuickTime Preferences File
.qtr
Plugin
QuickTime Extension Resource
.qtx
Plugin
QuickTime Extension
.qtz
Video
Quartz Composer File
.qvm
System
Q Virtual Machine
.qvm
Game
Quake III Virtual Machine File
.qwd
Game
QuakeWorld Demo File
.qx
Developer
Quexal Source Code
.qxd
Page Layout
QuarkXPress Document
.qxl
Misc
QuarkXPress Library
.qxp
Page Layout
QuarkXPress Project File
.qxt
Page Layout
QuarkXPress Template
R File Extensions
File types with extensions that start with the letter R.
Extension
File Type
File Description
.r
Developer
Mac OS X Resource File
.r
Developer
R Script File
.r
Audio
Right Audio Channel File
.r
Developer
REBOL Script
.r0
Compressed
WinRAR Compressed Archive
.r00
Compressed
WinRAR Compressed Archive
.r01
Compressed
WinRAR Split Archive Part 1
.r02
Compressed
WinRAR Split Archive Part 2
.r03
Compressed
WinRAR Split Archive Part 3
.r1
Compressed
WinRAR Multi-Volume Archive Part 1
.r1m
Audio
RealOne Streaming Media File
.r2
Compressed
WinRAR Multi-Volume Archive Part 2
.r30
Compressed
WinRAR Split Archive Part 30
.ra
Audio
Real Audio File
.rad
Text
Radar ViewPoint Radar Data
.raf
Raster Image
Fuji RAW Image File
.ral
Data
WinRail Track Design File
.ram
Audio
Real Audio Media
.rar
Compressed
WinRAR Compressed Archive
.ras
Game
Remedy Archive System File
.ras
Raster Image
Sun Raster Graphic
.ratdvd
Disk
RatDVD Disk Image
.raw
Audio
Raw Audio Data
.raw
Raster Image
Raw Image Data File
.rax
Audio
Real Music Store Audio File
.ray
Image
Rayshade Image
.rb
Developer
Ruby Source Code
.rb
Developer
REALbasic Project
.rb
Settings
Rosebud Profile
.rbc
Backup
Retrospect Backup Catalog File
.rbc
Developer
Rembo-C Script
.rbf
Backup
Retrospect Backup File
.rbf
Backup
Windows Installer Rollback File
.rbk
Backup
Windows 95 Registry Backup File
.rbp
Developer
REALbasic Project
.rbs
Backup
Windows Installer Rollback Script
.rbs
Audio
Rebirth Song File
.rbt
Data
Lego MINDSTORMS NXT Program
.rbx
Executable
Rembo-C Compiled Script
.rbxl
Game
ROBLOX Location
.rbxm
Game
ROBLOX Model
.rc
Developer
Resource Script
.rcd
Data
Arcade File
.rcg
Data
Recog Character Recognition Set
.rcl
Disk
Easy CD and DVD Creator 6 Project
.rco
System
PlayStation Portable Resource File
.rcproject
Video
iMovie '08 Project
.rdb
Video
Wavelet Video Images File
.rdb
Data
N64 ROM Database
.rdb
Backup
Retrospect Backup Set
.rdf
Disk
PowerProducer Disc Image
.rdf
Settings
Resource Description Framework File
.rdf
Data
Report Definition File
.rdl
Vector Image
MicroStation Redline File
.rdo
Settings
Xerox Rawster Document Object File
.rdp
Settings
Remote Desktop Configuration File
.rds
Image
Ray Dream Studio Scene File
.rdx
Data
Reflex Data File
.readme
Text
Readme File
.reb
Developer
REBOL Script File
.rec
Video
Topfield PVR Recording
.ref
Data
Microsoft Train Simulator Reference File
.reg
System
Registry File
.reg
Settings
Registration Information File
.rel
Data
Norton Internet Security Log File
.rels
Page Layout
Open Office XML Relationships File
.rem
Misc
BlackBerry Encrypted Data File
.rep
Game
StarCraft Replay File
.rep
Game
Grand Theft Auto Replay File
.res
Developer
Windows Resource File
.res
Developer
C++ Complied Resource File
.ret
Data
BusinessObjects Template
.rev
Compressed
RAR Recovery Volume Set
.rex
Audio
ReCycle Loop File
.rez
Plugin
Escape Velocity Plug-in File
.rez
Game
Lithtech Game Engine Resource File
.rf1
Data
Retirement Forecast File
.rfa
Data
Revit Family File
.rfa
Game
Battlefield 1942 Game Package
.rfb
Misc
RoboForm Bookmark File
.rfc
Misc
RoboForm Contact File
.rfl
Audio
Reason ReFill Sound Bank
.rfm
Game
rFactor Modification File
.rfn
Misc
RoboForm Safenote File
.rfo
Data
RoboForm Option File
.rfp
Misc
RoboForm Passcard File
.rfq
Settings
RoboForm SearchCard File
.rft
3D Image
Revit Family Template File
.rft
Text
Revisable Form Text Document
.rft
Misc
RoboForm Identity File
.rgb
Raster Image
Q0 Image File
.rgb
Raster Image
RGB Bitmap
.rge
Data
Entourage File Archive
.rgn
Data
Garmin Regional Map File
.rgo
Data
RepliGo File
.rgp
Game
RealArcade Game Package
.rgs
Executable
Registry Script
.rhp
Plugin
Rhino Plug-in
.rhtml
Web
Ruby HTML Web Page
.ric
Raster Image
NXT Image File
.rif
Raster Image
Raster Image File
.ris
Text
Research Information Systems Citation File
.rise
Developer
RISE Editor Model File
.rix
Image
ColorRIX Bitmap Graphic
.rjs
Web
Ruby Javascript File
.rjs
Misc
RealJukebox Skin File
.rk
Compressed
WinRK File Archive
.rkp
Game
Rockchip MP4 Player Game
.rle
Raster Image
Run Length Encoded Bitmap
.rll
Settings
Microsoft Resource Library
.rm
Video
Real Media File
.rmf
Audio
Rich Music Format
.rmi
Audio
RMID MIDI File
.rmj
Audio
Real Media Jukebox Audio File
.rmm
Audio
RAM Meta File
.rmr
Misc
ResumeMaker File
.rms
Settings
Java Application Settings File
.rms
Video
Secure Real Media File
.rmt
System
Router Firmware File
.rmuf
Data
Alpha Five Runtime License File
.rmvb
Video
RealMedia Variable Bit Rate File
.rmx
Audio
RealJukebox Format
.rnc
Developer
RELAX NG Compact Syntax File
.rnc
Compressed
RNC ProPack Archive
.rnd
Misc
Random Hash Data File
.rnd
Misc
PGP Random Seed File
.rng
Text
RELAX NG File
.rng
Audio
Nokia Composer Ringtone
.rnq
Data
Renque Model File
.rns
Audio
Reason Song File
.rnx
Settings
RealPlayer Settings File
.rod
Data
Actuate Report Object Design File
.rog
Data
Roger 2 Input Data File
.roi
Data
Shark Sales System Data File
.roi
Data
Report Object Instance
.rol
Audio
Ad Lib Synthesized Instrument
.rom
Misc
Read Only Memory Image
.rom
Game
N64 Game ROM File
.roq
Video
Id Software Game Video
.rot
Game
Homeworld 2 Graphics File
.rou
Data
Gerber Route File
.rov
Misc
Report Object Variable
.rox
Executable
Actuate Report Object Executable File
.rp
Video
RealPix Clip
.rp2
Game
RetroPlatform Player Program Archive
.rp9
Compressed
RetroPlatform Disk Image Archive
.rpb
Settings
Radmin Phonebook File
.rpj
Executable
Real Pac Batch Job File
.rpk
Settings
RadLight Media Player Skin
.rpl
Game
Toribash Replay File
.rpm
Compressed
Red Hat Package Manager File
.rpm
Plugin
RealPlayer Plug-in
.rpp
Data
REAPER Project File
.rps
Settings
3ds Max Render Preset Settings
.rpt
Data
Crystal Reports File
.rpt
Text
Generic Report
.rpy
Game
Touhou Project Replay File
.rrr
Settings
Rhapzodé Resource Repository
.rrr
Backup
Registry Mechanic Backup File
.rrt
Data
Rhapzode Resource Template
.rsb
Image
Red Storm Bitmap File
.rsc
Data
Symbian Application Compiled Resource File
.rsd
Data
RealSQLDatabase File
.rsdf
Encoded
RapidShare Download File
.rsm
Page Layout
WinWay Resume Deluxe Resume File
.rsn
Audio
Reason Project File
.rso
Audio
NXT Brick Audio File
.rsr
Raster Image
Poser Model Preview File
.rsrc
Developer
Macintosh Resource File
.rss
Web
Rich Site Summary
.rss
Developer
Symbian Application Resource File
.rst
Text
reStructuredText File
.rsv
Data
RSView32 Project File
.rsw
Data
R&R SQL Report Writer Report File
.rt
Text
RealText Streaming Text File
.rtc
Misc
Live Meeting Connection File
.rtd
Text
RagTime Document
.rte
Data
Revit Project Template
.rte
Compressed
RTE Encoded File
.rte
Data
Navigation Route
.rtf
Text
Rich Text Format File
.rtfd
Text
Rich Text Format Directory File
.rti
Audio
Real Tracker Instrument
.rtm
Audio
Real Tracker Module
.rtm
Misc
LabVIEW Run-Time Menu File
.rtp
Misc
TurboTax Update File
.rts
Video
RealPlayer Streaming Media
.rts
Video
QuickTime Real-Time Streaming Format
.rts
Audio
Real Tracker Sample
.rts
Settings
RoyalTS Remote Connection File
.rtx
Text
Rich Text Document
.ru
Developer
JavaSoft JRE 1.3 Library
.ruf
System
Samsung DVD and Blu-ray Player Firmware File
.rul
Developer
InstallShield Rules
.rum
Video
Bink Video Subtitle File
.run
Text
Runscanner Scan File
.run
Game
Rune Map File
.rv
Video
Real Video File
.rvproj
Game
RPG Maker VX Project File
.rvt
Data
Revit Project File
.rw3
Web
RapidWeaver 3 Site File
.rwg
Data
Random Word Generator Project File
.rwp
Web
RapidWeaver Package
.rwsw
Web
RapidWeaver Site File
.rxdata
Game
RMXP Data File
.rxe
Executable
Lego Mindstorms NXT Executable Program
.rz
Compressed
Rzip Compressed File
.rzb
Data
Red Zion Book File
.rzk
Text
File Crypt Password File
.rzk
Encoded
Red Zion Key File
.rzn
Text
Red Zion Notes File
.rzs
Compressed
Red Zion Security File
.rzx
Encoded
File Crypt Encrypted File
S File Extensions
File types with extensions that start with the letter S.
Extension
File Type
File Description
.s
3D Image
Microsoft Train Simulator Shape File
.s
Developer
Source Code File
.s00
Compressed
ZipSplitter Part 1 Archive
.s01
Compressed
ZipSplitter Part 2 Archive
.s02
Compressed
ZipSplitter Part 3 Archive
.s19
Developer
Motorola S19 File Record
.s3i
Audio
Scream Tracker 3 Instrument
.s3m
Audio
ScreamTracker 3 Module
.s7z
Compressed
Mac OS X 7-Zip File
.s85
Data
Sabre Airline Solutions Chart
.sa9
Plugin
Hue and Cry Photoshop Plug-In
.sab
3D Image
ACIS SAB Model File
.sad
Game
Black & White Audio File
.saf
Audio
Secure Audio File
.saf
Data
Street Atlas USA Map File
.saf
Text
SafeText File
.safetext
Text
SafeText File
.sam
Text
Ami Pro Document
.sam
Audio
MOD Edit Sample File
.sam07
Data
SAM 2007 Package
.sar
Image
Saracen Paint Graphic
.sar
Compressed
Service Archive File
.sar
Data
Sibelius Arrange Style
.sas
Developer
SAS Program File
.sat
3D Image
ACIS SAT Model File
.sav
Backup
Parallels Desktop Saved State Image File
.sav
Data
SPSS Data File
.sav
Game
Saved Game
.save
Text
Nano Temporary Save File
.saveddeck
Web
Nokia Saved Web Page
.savedsearch
System
Spotlight Saved Search
.saver
System
Mac OS X Screen Saver
.sb
Developer
Small Basic Source Code File
.sb
Developer
Scratch Project File
.sb
Audio
Signed Byte Audio File
.sbd
Data
Superbase Data Definition File
.sbf
Data
SmartBroker Data
.sbf
Data
Superbase Database File
.sbg
Audio
SBaGen Binaural Beat File
.sbi
Audio
Sound Blaster Instrument
.sbk
Video
SWiSH Project Backup File
.sbk
Page Layout
Scrapbook Factory File
.sbk
Misc
Multimedia ToolBook System Book
.sbk
Audio
E-MU SoundFont Sound Bank
.sbq
Data
Superbase QuickReports File
.sbt
Video
SBT Subtitle File
.sbt
Data
Superbase Data Notes File
.sbv
Settings
YouTube Captions File
.sbv
Page Layout
Superbase Form Definition File
.sbx
Data
ESRI Spatial Index File
.sc
Developer
SuperCollider Source Code File
.sc2
Audio
Sample Cell II Instrument Definition
.sc4
Game
Sim City 4 Saved File
.sca
Executable
Scala Script File
.sca
Data
Norton AntiVirus Scan File
.scar
Executable
SCAR Script
.scb
Executable
Scala Published Script
.scc
Text
Scenarist Closed Caption File
.scd
Misc
TurboTax Schedule Description
.scea
Game
Aleph One Map File
.scf
Data
DNA Sequence Chromatogram File
.scf
System
Windows Explorer Command
.scf
Game
SimTown Sounds File
.scg
Image
ColorRIX Bitmap Graphic
.sch
Data
EAGLE Schematics File
.sci
Raster Image
ColorRIX Bitmap Graphic
.scm
Game
StarCraft Map File
.scm
Plugin
GIMP Script-Fu Script
.scm
Video
Super Chain Media File
.scm
Video
ScreenCam Screen Recording
.scm
Text
Schema File
.scn
Video
Pinnacle Studio Scene File
.scn
Game
SimCity Scenario File
.scn
Game
Age of Mythology Scenario File
.scp
Image
ColorRIX Bitmap Graphic
.scpt
Executable
AppleScript Script File
.scr
System
Windows Screensaver
.scr
Executable
Script File
.script
Executable
Generic Script File
.scs
Game
Simcity Societies Save Game File
.sct
Text
FoxPro Form Memo
.sct
Executable
Windows Script Component
.sct
Raster Image
Scitex Continuous Tone File
.scu
Image
ColorRIX Bitmap Graphic
.scv
Vector Image
ScanVec CASmate Sign File
.scw
Text
Movie Magic Screenwriter Document
.scw
Misc
Score Writer Document
.scx
Game
Game Scenario File
.scx
Misc
FoxPro Form
.scx
Game
Microsoft Game Scenario File
.sd
Audio
Sound Designer Audio File
.sd
Audio
ESPS Sampled Data File
.sd2
Audio
Sound Designer II File
.sda
Image
OpenOffice.org Draw Document
.sdb
Data
ServerBoss Database File
.sdb
Data
OpenOffice.org Base Database File
.sdb
3D Image
SAP2000 Model File
.sdb
Data
MonKey Office SQLite Database File
.sdb
Web
SocialDecks Blog File
.sdb
System
Custom Application Compatibility Database
.sdc
Backup
Stardock Central Download Archive
.sdc
Compressed
Secure Download Cabinet
.sdc
Data
OpenOffice.org Calc Spreadsheet
.sdd
Misc
StarOffice Presentation
.sdf
Data
SQL Server Compact Database File
.sdf
Data
Standard Data File
.sdf
Data
Spatial Data Format File
.sdi
Disk
Windows System Deployment Image
.sdm
Image
Spatial Data Modeling Language File
.sdm
Text
StarOffice Mail Message
.sdn
Compressed
Shareware Distributors Network File
.sdp
Data
Session Description Protocol File
.sdq
Data
SAS Data File
.sdr
Image
SmartDraw Drawing
.sds
Data
OpenOffice.org Chart
.sds
Data
SDS Apps Data File
.sds
Audio
MIDI Sample Dump Standard File
.sdt
Game
Grand Theft Auto III Audio File
.sdt
Page Layout
SmartDraw Template File
.sdw
Text
StarOffice Writer Text Document
.sdx
Audio
Sample MIDI Dump Exchange
.sea
Compressed
Self-Extracting Archive
.sec
Misc
PGP Secret Key Ring
.seed
Executable
Linux Preseed File
.sef
Encoded
Encryptafile Signature File
.seg
Audio
Eragon Audio File
.sen
Data
SenTest Data File
.sen
Compressed
Scifer Internal Header Archive
.seo
Data
SEO Note File
.seq
Data
DNA Sequence Text File
.ser
Data
GeneMapper Project File
.ses
Audio
Audition Session
.session
3D Image
CATIA 4 Session File
.set
Settings
Document Library Property Set File
.set
Settings
Settings File
.sew
Misc
Home Embroidery Format
.sf
Audio
IRCAM Sound File
.sf2
Audio
SoundFont 2 Sound Bank
.sfcache
Misc
ReadyBoost Cache File
.sfd
Game
Sofdec Dreamcast Movie
.sff
Image
Structured Fax Format
.sfk
Audio
Sound Forge Audio Peak File
.sfl
Audio
Sound Forge Sound Data File
.sfo
Settings
CuteFTP Search File
.sfo
Game
PSP Game Parameters File
.sfs
Compressed
SquashFS File Archive
.sfv
Misc
Simple File Verification File
.sfvidcap
Video
Sonic Foundry Video Capture File
.sfw
Raster Image
Seattle FilmWorks Image
.sfx
Compressed
Windows Self-Extracting Archive
.sgb
Game
Dawn of War Map File
.sgb
Game
Super Game Boy ROM File
.sgi
Image
Silicon Graphics Image File
.sgm
Text
SGML File
.sgml
Data
Standard Generalized Markup Language File
.sgn
Data
Slax Boot File
.sh
Compressed
Unix Shell Archive
.sh
Developer
Bash Shell Script
.sh3d
3D Image
Sweet Home 3D Design File
.sh3f
3D Image
Sweet Home 3D Model Library
.shar
Compressed
Unix Shar Archive
.shb
Executable
Windows Document Shortcut
.shg
Raster Image
Segmented Hyper-Graphic
.shk
Compressed
ShrinkIt Archive
.shn
Audio
Shorten Compressed Audio File
.shortcut
Misc
Asutype Shortcut
.shp
3D Image
Shapes File
.shp
Data
ESRI Shapefile
.shpa
Game
Aleph One Shape File
.shr
Compressed
Unix Shell Archive File
.shs
Data
Microsoft Scrap File
.sht
Web
HTML File with Server Side Includes
.shtm
Web
HTML Server Side Include File
.shtml
Web
Server Side Include HTML File
.shw
Misc
Corel Presentation
.shx
Data
Shapefile Index File
.shx
Misc
Motorola Flash Superfile
.shy
Encoded
ShyFile Encrypted File
.si
Image
Softimage Image Format
.sib
Audio
Sibelius Score
.sid
Audio
Commodore 64 Music File
.sid
Audio
SID Audio File
.sid
Image
MrSID Image
.sif
Settings
Windows Setup Information File
.sig
Text
Signature File
.sig
Image
Broderbund Sign File
.sim
Data
SAP Tutor File
.sim
Raster Image
Aurora Image
.simg
Disk
Synclavier Disk Image File
.sims2pack
Game
Downloaded Sims 2 Package File
.sims3pack
Game
The Sims 3 Package File
.sis
Misc
Symbian Installation File
.sisx
Misc
Symbian OS Installation File
.sit
Compressed
Stuffit Archive
.site
Web
GoLive Website Project File
.sitx
Compressed
Stuffit X Archive
.sk2
Vector Image
ChemSketch Drawing
.skb
Backup
SketchUp Backup Document
.skc
Data
SideKick Card File
.ski
Settings
Motorola Phone Skin File
.skin
Settings
InstallShield Skin File
.skindex
Misc
Mail Index File
.skl
3D Image
Maya Skeleton File
.skn
Settings
Symbian OS Skin File
.skp
3D Image
SketchUp Document
.skr
Misc
PGP Private Keyring
.skv
Data
Semicolon Separated Values File
.skv
Data
XLANG Schedule Drawing File
.skx
Data
XLANG Schedule File
.skz
Settings
SuperKaramba Theme
.sl
Settings
Software License File
.slb
Misc
AutoCAD Slide Library
.sld
Raster Image
AutoCAD Slide File
.sldasm
3D Image
SolidWorks Assembly File
.slddrt
Vector Image
SolidWorks Sheet File
.slddrw
Vector Image
SolidWorks Drawing File
.sldprt
3D Image
SolidWorks Part File
.sle
Data
Sisulizer Package File
.slf
Misc
Symantec License File
.slk
Data
Symbolic Link File
.sln
Developer
Visual Studio Solution File
.slp
Data
Sisulizer Project File
.sls
Text
Image Playlist
.slt
Settings
Mozilla User Profile Folder
.sm
Game
StepMania Song File
.sma
Developer
AMX Mod Plugin Source File
.smc
Game
Super Nintendo Game ROM
.smd
Game
Sega Mega Drive ROM
.smf
Audio
Standard MIDI File
.smi
Disk
Self-Mounting Disk Image
.smi
Video
SMIL Presentation
.smil
Video
SMIL Presentation File
.smk
Video
Smacker Compressed Movie File
.sml
Video
SMIL Slideshow Presentation
.smm
Misc
Ami Pro Macro
.smp
Audio
SampleVision Audio Sample Format
.smp
Image
Xionics SMP Image Format
.sms
Text
Exported SMS Text Message
.sms
Game
Sega Master System ROM File
.smv
Video
VideoLink Mail Video File
.smzip
Game
StepMania Package
.sn1
Backup
Drive Snapshot First Differential Backup
.sn2
Backup
Drive Snapshot Second Differential Backup
.sna
Backup
Drive Snapshot Primary Backup File
.snapfireshow
Data
Corel SnapfireShow File
.snd
Audio
Macintosh Sound Resource
.snd
Audio
Sound File
.snd
Audio
Akai MPC Sample
.snda
Game
Aleph One Sound File
.sng
Audio
MIDI Song File
.snippet
Developer
Visual Studio IntelliSense Code Snippet
.snm
Misc
Netscape Mail Index
.snp
Page Layout
Access Report Snapshot
.so
Developer
Shared Library
.sol
Settings
Flash Local Shared Object File
.sonic
Data
DigitalMedia Project File
.sopt
Disk
Synclavier Optical Disk Image File
.sou
Audio
SBStudio II Sound File
.soundpack
Data
SoundPackager Sound Package
.sp
Page Layout
SignPlot Traffic Sign File
.sparsebundle
Disk
Mac OS X Sparse Bundle
.sparseimage
Disk
Mac OS X Sparse Image
.spc
Image
Spectrum 512 Compressed Image
.spd
Encoded
Sealed Acrobat Document
.spdf
Encoded
Sealed PDF
.spe
Raster Image
WinSpec CCD Capture File
.spf
Backup
ShadowProtect Full Backup File
.spf
Settings
SlingPlayer Favorites File
.spg
Backup
TCP Optimizer Backup File
.spi
Backup
ShadowProtect Incremental Backup File
.spiff
Image
Still Picture Interchange File Format
.spl
Video
FutureSplash Animation
.spo
Data
SPSS Statistical Data Output File
.spp
Raster Image
PhotoPlus Picture File
.sppack
Audio
SPPack Sound Sample
.spr
Executable
FoxPro Generated Screen File
.spr
Game
Half-Life Sprite File
.sprg
Audio
Synclavier Program File
.sprite
Game
SuperTux Sprite File
.sps
Data
SPSS Program File
.spt
Developer
ESPL Programming File
.spt
Compressed
TM File Packer Compressed Archive
.spt
3D Image
SpeedTree Tree Data File
.spu
Image
Spectrum 512 Image
.spub
Data
Disc Cover File
.spv
Data
SPSS Output File
.spx
Audio
Ogg Vorbis Speex File
.sq
Data
Sysquake Program
.sqb
Backup
SQL Backup SQL Server Backup File
.sqd
Data
SQ Data File
.sqfs
Disk
Squash FS Bootable File
.sql
Data
Structured Query Language Data
.sqlite
Data
SQLite Database File
.sqm
Misc
Service Quality Monitoring File
.sqm
Game
Operation Flashpoint Mission File
.sqr
Data
SQL Program File
.sqx
Compressed
SQX Archive
.sqz
Compressed
Squeezed Video File
.sr
Image
Sun Raster Image File
.sr0
Misc
SecuROM Analysis File
.src
Developer
Source Code
.srf
Web
Server Response File
.srf
Raster Image
Sony Raw Image File
.srm
Game
Super Nintendo ROM Save File
.srs
Settings
Outlook Send/Receive Settings File
.srt
Video
SubRip Subtitle File
.ssa
Text
Sub Station Alpha Subtitle File
.ssc
Developer
SourceSafe Status File
.ssd
Misc
WindowBlinds Skin File List
.sseq
Audio
Synclavier Sequence File
.ssf
Data
Trimble Standard Storage Format File
.sslf
Misc
HLSW Shared Server List File
.ssm
Video
Standard Streaming Metafile
.ssnd
Audio
Synclavier Sound File
.sss
Settings
WindowBlinds Substyle File
.sst
Misc
Serialized Certificate Store File
.ssw
Misc
Sony Ericsson Firmware File
.st
Disk
Atari ST Disk Image
.sta
Data
ABAQUS Status File
.stb
Settings
AutoCAD Plot Style Table File
.stc
Data
StarOffice Calc Spreadsheet Template
.std
Misc
CD/DVD Label Template
.std
Image
StarOffice Drawing Template
.ste
Settings
Dreamweaver Site Settings File
.ste
Raster Image
Samsung IPOLIS Image File
.step
3D Image
STEP 3D Model
.stf
Data
Exchange 2000 Server Temporary File
.stf
Settings
Microsoft Setup Table File
.stg
Backup
ActiveSync Backup File
.sth
Misc
Lotus Domino Stash File
.sti
Misc
StarOffice Presentation Template
.stk
Data
Stickfigure Animator File
.stl
Data
Fireworks Style Library
.stl
Web
Certificate Trust List
.stl
3D Image
Stereolithography File
.stm
Data
Exchange Streaming Media File
.stm
Web
SSI Web Page
.stm
Audio
Scream Tracker 2 Module
.stmb
Misc
Synclavier Timbre File
.stml
Web
SSI HTML File
.sto
3D Image
PRO100 3D Interior Design Project
.stp
3D Image
STEP 3D CAD File
.stp
Data
Analysis Studio Project Information File
.stp
Web
SharePoint Template
.str
Data
dBASE Structure List Object File
.str
System
Windows Screensaver File
.str
Video
PlayStation Video Stream
.strings
Text
Text Strings File
.stt
Data
Streets & Trips Map Template
.stu
Data
Pinnacle Studio Project File
.stw
Text
StarOffice Text Document Template
.stw
Data
STATISTICA Workbook
.stx
Audio
Scream Tracker Music Interface Kit File
.stx
Video
Pinnacle Studio Project File
.sty
Audio
Yamaha/Korg Keyboard Style
.sty
Text
LaTeX Style
.styk
Data
Stykz Stick Figure
.stykz
Data
Stykz Animation
.style
Settings
ArcGIS Style Manager File
.style
Settings
SketchUp Style
.sub
Game
SubTerra Level File
.sub
Text
Subtitle File
.sud
Developer
Super Project Analyzer File
.sud
Game
Sudoku Puzzle File
.suf
Encoded
Ccrypt Encrypted File
.suit
Font
Macintosh Font Suitcase
.sun
Image
Sun Raster Graphic
.suniff
Image
Sun TAAC Graphic
.suo
Developer
Visual Studio Solution User Options File
.sup
Image
Subtitle Bitmap File
.sup
Developer
Super Project Definition File
.sv2i
Backup
Symantec System Index File
.sv5
Game
BigJig Saved Puzzle
.sv6
Game
RollerCoaster Tycoon 2 Saved Game
.svc
Web
IIS Special Content File
.svg
Vector Image
Scalable Vector Graphics File
.svgz
Vector Image
Compressed SVG File
.svi
Video
Samsung Video File
.svn-base
Developer
Subversion Base File
.svn-work
Misc
Subversion Cache File
.svr
Web
Compressed Virtual World
.svs
Game
Game Boy Advance Saved State File
.svx
Audio
8SVX Sound File
.sw
Audio
Signed Word Audio File
.sw2
Settings
Softwrap License File
.swa
Audio
ShockWave Audio
.swc
Game
Super Nintendo Wild Card ROM File
.swc
Developer
Flex Components Archive
.swd
Developer
Flash Debug File
.swf
Video
Flash Movie
.swi
Video
SWiSH Project File
.switch
Encoded
Switch Package
.swk
Data
StudyWorks Save File
.swm
Disk
Split Windows Imaging Format File
.swp
System
Swap File
.swt
Video
Flash Generator Template
.swv
Game
Microsoft Sidewinder Game Voice Settings File
.sxc
Data
StarOffice Calc Spreadsheet
.sxd
Image
StarOffice Drawing
.sxi
Data
StarOffice Impress Presentation
.sxm
Misc
StarOffice Math File
.sxw
Text
StarOffice Writer Text Document
.sy3
Data
Harvard Graphics Symbol File
.syh
Audio
Synchomatic Instrument
.sys
System
Motorola Driver File
.sys
System
Windows System File
.system
Game
Vega Strike Virtual System File
.syw
Audio
Yamaha SY99/SY85 Audio File
.syx
Audio
MIDI System Exclusive Message
.sz
Settings
Winamp Classic Skin Download
T File Extensions
File types with extensions that start with the letter T.
Extension
File Type
File Description
.t
Developer
Turing Source Code File
.t$m
Misc
AVG Internet Security Temporary File
.t01
Data
TaxCut 2001 File
.t02
Data
TaxCut 2002 File
.t03
Data
TaxCut 2003 File
.t04
Data
TaxCut 2004 File
.t05
Data
TaxCut 2005 Tax Return
.t06
Data
TaxCut 2006 Tax Return
.t07
Data
TaxCut 2007 Tax Return
.t08
Data
TaxCut 2008 Tax Return
.t09
Data
At Home 2009 Tax Return
.t2
Data
Textease 2000 File
.t3001
Data
TARGET 3001! Circuit Design Project File
.t3d
3D Image
Unreal Engine 3D Object File
.t3d
Settings
TicTacTi Advertisement Definition File
.t3x
Plugin
TYPO3 Compressed Extension
.t64
Disk
Commodore 64 Tape Image File
.taac
Image
Sun TAAC Graphic
.tab
Text
Tab Separated Data File
.tab
Text
Guitar Tablature File
.tag
Misc
DataFlex Query Tag
.tao
Disk
Track at Once CD/DVD Image
.tap
Game
Tap Tap Revenge Tap File
.tap
Disk
Commodore 64 Cassette Tape Image
.tar
Compressed
Consolidated Unix File Archive
.tar.gz
Compressed
Tarball File
.tar.xz
Compressed
XZ Compressed Tar Archive
.targets
Developer
MSBuild Targets File
.tax
Misc
TurboTax Tax Return
.tax2008
Data
TurboTax 2008 Tax Return
.tax2009
Data
TurboTax 2009 Tax Return
.taz
Compressed
Tar Zipped File
.tb
Data
Tabbery Tab File
.tbk
Data
ToolBook File
.tbk
Backup
FoxPro Memo Backup
.tbl
Data
StarCraft Information Table
.tbm
Game
Toribash Mod File
.tbs
Misc
TuneUp Utilities Boot Screen
.tbz
Compressed
Bzip Compressed Tar Archive
.tbz2
Compressed
Tar BZip 2 Compressed File
.tc
Disk
TrueCrypt Volume
.tcc
Data
TimeCalc Classic Data File
.tcc
Developer
C++ Source Code File
.tcd
Vector Image
Technobox CAD Drawing
.tcl
Developer
Tcl Script
.tcp
Executable
Tally Compiled Program File
.tct
3D Image
TurboCAD Drawing Template
.tcw
Image
TurboCAD Drawing File
.tcx
Data
Training Center Database File
.tcx
3D Image
TurboCAD 3D Model Text File
.td0
Disk
Teledisk Archive
.td0
Audio
Akai Teledisk Sound Library
.tda
Data
Palm To-Do File
.tda
Data
Java Application Thread Dump
.tda3mt
Video
DivX Author Template File
.tdb
Backup
eBay Turbo Lister Backup File
.tddd
Image
3D Data Description
.tdf
Text
Xserve Test Definition File
.tdf
Settings
Title Definition Format File
.tdf
Text
Guide Text Definition File
.tdl
Misc
MathType Translator Definition Language
.tdl
Data
Tab Delineated Format File
.tdm
Data
LabVIEW Binary Measurement File
.tds
Developer
Turbo Debugger Symbols File
.tdt
Data
FirstBreak Concrete Test File
.tdt
Data
THOR Data Tree File
.te
Data
Textease CT Database File
.te3
Data
WinTrack Object File
.teacher
Data
Senteo Teacher Database File
.ted
Game
Tribes 2 Game Data File
.tef
Data
TablEdit Tablature
.temp
Misc
Temporary (Temp) File
.tet
Data
Textease CT Template
.tex
Text
LaTeX Source Document
.tex
Raster Image
Texture File
.text
Text
Plain Text File
.tfa
Data
TreeSoft CashFlow Analysis Data File
.tfd
Data
Tape Format Requirements Document
.tfmx
Audio
Final Music System Tracker Module
.tfrd
Data
Tape Image Format Requirements Document
.tfw
Image
World File for TIFF
.tg
Compressed
Gzip Compressed Tar Archive
.tg4
Raster Image
Tiled Group 4 Raster Image File
.tga
Raster Image
Targa Graphic
.tgz
Compressed
Gzipped Tar File
.the
Settings
Microsoft Plus! Theme File
.theme
Settings
GTK Theme Index File
.theme
System
Microsoft Plus! Desktop Theme
.themepack
Settings
Windows 7 Theme Pack
.thm
Misc
Sony Ericsson Theme File
.thm
Executable
Thermwood Macro File
.thm
Raster Image
Thumbnail Image File
.thm
Image
Video Thumbnail File
.thmx
Settings
Office 2007 Theme File
.thp
Text
TurboTax Text String
.thumb
Raster Image
JAlbum Thumbnail File
.thx
Audio
Amiga THX Tracker Music File
.tib
Disk
Acronis True Image File
.tif
Raster Image
Tagged Image File
.tiff
Raster Image
Tagged Image File Format
.tim
Game
The Incredible Machine Level
.tip
Misc
TuneUp Utilities Icon Package
.tiprogram
Developer
TI-Basic Program File
.tivo
Video
TiVo Video File
.tix
Video
DivX Video Download Activation File
.tjp
Raster Image
Tiled JPEG File
.tjp
Data
TaskJuggler Project File
.tk
Developer
Tk Script
.tk3
Data
TK3 Multimedia eBook
.tkfl
Data
TKLinks Saver Favorite Links File
.tla
Misc
TuneUp Utilities Startup Logo
.tlb
Text
VAX Text Library
.tlb
Misc
OLE Type Library
.tlc
Vector Image
The Logo Creator File
.tlg
Backup
QuickBooks Transaction Log File
.tls
Misc
TuneUp Utilities Logon Screen
.tlz
Compressed
Tar LZMA Compressed File
.tlzma
Compressed
LZMA Compressed Tar Archive
.tm
Text
TeXmacs Document
.tmb
Misc
Timbuktu Pro Connection Document
.tmp
Backup
Temporary File
.tms
Executable
Telemate Script
.tmw
Data
Translation Memory Data File
.tmx
Text
Translation Memory eXchange File
.tn1
Image
Tiny Image (Low Resolution)
.tn2
Image
Tiny Image (Medium Resolution)
.tn3
Image
Tiny Image (High Resolution)
.tnef
Misc
Transport Neutral Encapsulation Format
.tny
Image
Atari Tiny Image
.toast
Disk
Toast Disc Image
.toc
Misc
Eudora Table of Contents
.toc
Game
World of Warcraft Add-on Table of Contents File
.toc
Audio
PSP Audio File
.toc
Disk
Brasero Table of Contents File
.tod
Video
JVC Everio Video Capture File
.tol
Data
AOL Tool File
.topc
Data
TopicCrunch Project File
.torrent
Misc
BitTorrent File
.tp
Video
Beyond TV Transport Stream File
.tp0
Video
Mascom PVR Video File
.tp3
Page Layout
Harvard Graphics DOS Template File
.tpb
Data
GROMACS Binary Input File
.tpc
Text
Topic Connection Placeholder
.tpf
Data
Transit NXT Pack Translation File
.tpi
Plugin
EDIUS Plugin File
.tpi
Raster Image
TrueVision Bitmap Image
.tpl
Misc
Document Template
.tpm
Misc
Trusted Platform Module Password File
.tpm
Misc
Transformation Parameters Model File
.tpr
Video
TMPGEnc Project File
.tps
Data
Multi Channel Measurement File
.tps
Misc
Clarion TopSpeed Data File
.tpu
Developer
Turbo Pascal Unit
.tpx
Developer
Turbo Pascal 7 Unit
.tr3
Data
TomeRaider eBook File
.tra
Data
WinTrack Railroad Track File
.trc
Misc
Oracle Trace File
.trd
Data
TrID Definitions Package
.trif
Image
Tiled Raster Interchange Format
.trk
Data
CompeGPS Land Track File
.trk
Data
Garmin Track File
.trk
Game
Pacific Fighters Offline Track File
.trp
Video
HD Video Transport Stream
.trs
Data
Rosetta Stone Language Data
.trs
Data
WinTrack Railroad Track Text File
.truck
3D Image
Rigs of Rods Truck Definition File
.trx
Data
Firmware Image File
.trx
Settings
PASSOLO Translation List File
.trx
Data
WebAuthorize Batch File
.trx
Developer
Microsoft MSTest Results File
.ts
Video
Video Transport Stream File
.tsk
Settings
Pocket PC Skin
.tsm
Settings
TwinCAT System Manager Configuration File
.tsp
Audio
TrueSpeech Audio File
.tst
Data
TestPoint Test File
.tstream
Misc
SwarmPlayer Streaming Torrent
.tsv
Data
Tab Separated Values File
.tsz
Settings
Trillian Skin File
.ttc
Font
TrueType Font Collection
.ttf
Font
TrueType Font
.ttk
Data
Catalyst Translation Toolkit
.ttx
Misc
Trados TagEditor File
.tu
Developer
Turing Source File
.tub
Misc
Paint Shop Pro Picture Tube
.tur
Developer
Turing Program Source File
.tvj
Text
TrueView Job Ticket
.tvl
Misc
TurboTax File
.tvpi
Web
TitanTV Television Listing File
.tvs
Video
TeamViewer Video Session File
.tvvi
Web
TitanTV Television Listing File
.twc
Settings
TTWin Configuration File
.twt
Game
Carmageddon 2 Data File
.txa
Data
Midas ViewPoint Text Array List
.txd
Data
Game Texture Dictionary
.txf
Data
Tax Exchange Format
.txf
Data
Transit XV Pack Translation File
.txt
Text
Plain Text File
.txw
Audio
Yamaha TX16W Audio File
.txz
Compressed
XZ Compressed Tar Archive
.typeit4me
Settings
TypeIt4Me Clippings File
.tz
Compressed
Zipped Tar Archive
.tzx
Disk
ZX Spectrum Tape Image File
U File Extensions
File types with extensions that start with the letter U.
Extension
File Type
File Description
.u
Audio
AU Audio File
.u
Image
Subsampled Raw YUV Image
.u
Game
Unreal Tournament Class Package
.u3d
3D Image
Universal 3D File
.u3i
Text
U3 Application Information File
.u3p
Executable
U3 Smart Application
.uax
Game
Unreal Audio Package
.ub
Audio
Unsigned Byte Audio File
.uc
Game
UnrealScript Class
.uc2
Compressed
UltraCompressor 2 Archive
.uccapilog
Data
Microsoft UCC API Log File
.ucf
Web
WebEx Media File
.uci
Backup
UFS Explorer Backup File
.ud
Data
OmniPage User Dictionary
.udb
Data
Dynamics AX User Database File
.udeb
Data
Debian Package File
.udf
Executable
Excel User Defined Function
.uds
Data
Uniform Data System File
.uds
Data
Sierra Generations File
.ufo
Raster Image
Ulead File Object
.ufs
Disk
FreeBSD Unix File System File
.ufs.uzip
Compressed
Compressed Unix File System File
.uha
Compressed
UHarc Compressed Archive
.ui
Developer
User Interface File
.uibak
Disk
UltraISO Backup Disk Image
.uif
Disk
Universal Image Format Disc Image
.uis
Settings
WindowBlinds User Interface Specification
.ukx
Game
Unreal Animation Package
.ulaw
Audio
Raw u-Law Audio File
.ulf
Data
Universal List File
.uls
Misc
NetMeeting User Location Service File
.ult
Audio
UltraTracker Module
.ulw
Audio
u-Law Audio File
.ulz
Data
USBlyzer Data Capture File
.umod
Game
Unreal Tournament Module File
.umx
Game
Unreal Music Package
.unauth
Text
SiteMinder Unauthorized Message File
.uni
Audio
MikMod UniMOD Module
.unity
Game
Unity Scene File
.unity3d
Game
Unity Scene Web Player File
.unk
Misc
Unknown File
.unknown
Misc
Unknown File Type
.unr
Game
Unreal Level Map
.unx
Text
Unix Text File
.uop
Game
Ultima Online Patch File
.upd
Text
Program Update Information
.update
Data
ISAPI Update File
.upk
Game
Unreal Engine 3 Package
.upoi
Data
iGO Points of Interest File
.upx
Executable
Ultimate Packer for eXecutables File
.url
Web
Internet Shortcut
.urt
Image
Utah Raster Toolkit File
.usa
Game
Unreal Saved Game File
.userprofile
Settings
Norton Antivirus User Profile File
.usf
Audio
Nintendo 64 Music File
.usflib
Audio
Nintendo 64 Song Library
.usr
Data
FileMaker Pro Database File
.usx
Game
Unreal Static Meshes
.ut2
Game
Unreal Tournament Map
.ut2mod
Game
Unreal Tournament 2003/2004 Module File
.ut3
Game
Unreal Tournament 3 Map File
.ut4mod
Game
Unreal Tournament 2004 Module
.utc
Game
Bioware Creature File
.utf8
Text
Unicode UTF8-Encoded Text
.utx
Game
Unreal Texture Package
.utxt
Text
Unicode Text File
.utz
Settings
UIQ Theme Package
.uu
Encoded
Uuencoded File
.uud
Encoded
UUDecoded File
.uue
Encoded
Uuencoded File
.uvf
Data
Uncertain Value Format
.uvx
Game
Unreal Tournament 2003 Saved Game
.uw
Audio
Unsigned Word Audio File
.uwf
Audio
UltraTracker Wave File
.uwl
Data
User Word List File
.uxx
Game
Unreal Tournament Cache
.uzip
Compressed
FreeBSD Compressed Disk Image
V File Extensions
File types with extensions that start with the letter V.
Extension
File Type
File Description
.v
Image
Subsampled Raw YUV Image
.v2i
Backup
Norton Ghost Virtual Volume Image
.v3d
3D Image
Visual3D.NET Data File
.v64
Game
Nintendo 64 ROM Dump
.vac
Developer
Oc2.316s Cakit File
.vag
Audio
PlayStation Compressed Sound File
.val
Audio
Olympus Voice Recording
.val
Data
Values List
.val
Data
Valodas Dictionary File
.vaporcd
Disk
Norum Vapor CD
.var
Developer
Variable Data
.vb
Executable
VBScript File
.vb
Game
Virtual Boy ROM File
.vbd
Web
Visual Basic ActiveX Document
.vbe
Executable
VBScript Encoded Script File
.vbg
Developer
Visual Basic Project Group File
.vbp
Developer
Visual Basic Project File
.vbpf1
Data
Virtual Business - Personal Finance Data File
.vbproj
Developer
Visual Studio Visual Basic Project
.vbs
Executable
VBScript File
.vbscript
Executable
Visual Basic Script
.vbt
Misc
Spyware Doctor Temporary Scan File
.vbt
Misc
iAntiVirus Temporary Scan File
.vbx
Developer
Visual Basic Custom Control
.vbz
Developer
Visual Basic Project Template
.vc
Developer
Verge Code File
.vc1
Video
VC-1 Video File
.vc3
Audio
VSampler Soundbank File
.vc4
Developer
Visual C++ 4 File
.vc4
Disk
Virtual CD Disk Image
.vcd
Disk
FarStone Virtual Drive
.vcd
Disk
Virtual CD
.vcd
Data
Value Change Dump File
.vce
Data
Visual CertExam Exam File
.vcf
Data
vCard File
.vcm
Game
Vice City Mod Manager File
.vcpref
Settings
Norton Antivirus Preferences File
.vcproj
Developer
Visual C++ Project File
.vcr
Video
ATI Video Card Recording
.vcs
Data
vCalendar Event File
.vct
Text
Visual Class Library Memo
.vcv
Video
ViewCave Video File
.vcx
Developer
Visual Fox Pro Class Library
.vda
Raster Image
Targa Bitmap Image File
.vdb
Data
Symantec Virus Database File
.vdf
Game
Gothic Game Data File
.vdf
Plugin
VirtualDub Video Filter
.vdi
Disk
Virtuo CD Manager Disk Image
.vdi
Disk
VirtualBox Virtual Disk Image
.vdm
Developer
VEDIT Macro File
.vdm
Developer
VDM Specification File
.vdo
Executable
Heathen Virus File
.vdo
Video
VDOLive Media File
.vdproj
Developer
Visual Studio Deployment Project File
.vdr
Video
VirtualDub Signpost File
.vdx
Data
Visio Drawing XML File
.veg
Video
Vegas Video Project
.vem
Compressed
Virtual Expander Compressed File
.vem
Video
Meta Media Video E-Mail File
.ver
Misc
Version Record
.vexe
Executable
Virus Executable File
.vf
Video
Vegas Movie Studio Project File
.vfc
Page Layout
VentaFax Cover Page File
.vff
Raster Image
Sun TAAC Graphic File
.vfs
Misc
Virtual File System Index
.vfs
Data
VentaFax Schedule File
.vfw
Video
Video for Windows
.vfz
Video
Creative Webcam Video Effects File
.vga
System
VGA Display Driver
.vgc
Developer
ViziGen Code Generation Template
.vgd
System
Generic CADD VGA Driver
.vgz
Video
DigitalVDO Compressed Video File
.vhd
Disk
Virtual PC Virtual Hard Disk
.vhd
Developer
VHDL Source File
.vi
Data
LabVIEW Virtual Instrument File
.vic
Image
VICAR Image
.vic
Developer
ViziGen Code Import Mappings File
.vid
Video
Generic Video File
.viewlet
Video
Qarbon Viewlet
.viff
Image
Visualization Image File Format
.vip
Data
Stitch Pattern File
.vir
Misc
Virus-Infected File
.vis
Game
Visibility Image File
.viv
Game
PlayStation Video File
.viv
Video
VivoActive Video File
.vivo
Video
VivoActive Video File
.vlab
Video
VisionLab Studio Project File
.vle
Data
Virtual Labs Electricity Circuit File
.vlg
Data
VentaFax Logbook File
.vlp
Web
LiveSite Project
.vlt
Encoded
WinVault File Archive
.vlx
Executable
Compiled AutoLISP File
.vmd
Audio
Covox Raw Sample
.vmdk
Disk
Virtual Machine Disk File
.vmf
Audio
Covox Speech Thing Sample
.vmf
Game
Valve Map File
.vmf
Audio
Vocaltec Media File
.vmg
Misc
Nokia Text Message
.vml
Vector Image
Vector Markup Language File
.vmt
Data
Valve Material File
.vmtm
Settings
VMware Team Data File
.vmwarevm
Disk
VMware Fusion Virtual Machine
.vmx
Settings
VMWare Configuration File
.vmx
Game
Valve Map Backup File
.vmx
Settings
Cubase Mixer Settings File
.vna
Image
JVC JLIP Image
.vnc
Settings
VNC Configuration File
.vnd
Vector Image
Type3 Design File
.vnf
Font
Vision Numeric Font
.vnt
Text
Mobile Phone vNote File
.vob
Game
Live for Speed Car File
.vob
Video
DVD Video Object File
.voc
Audio
Creative Labs Audio File
.voi
Data
VOI Group File
.voi
Audio
Voyetra Voice File
.vok
Data
PocketVok Vocabulary File
.vol
Game
Video Game Archive
.vol
Misc
Volfs File System Directory
.vor
Misc
StarOffice Template
.vox
Audio
VoxWare Dialogic Audio File
.vp3
Video
On2 Streaming Video File
.vp6
Video
TrueMotion VP6 Video File
.vp7
Video
TrueMotion VP7 Video File
.vpa
Misc
VPchat Chat Gestures File
.vpc
Developer
ViziGen Configuration File
.vpc7
Misc
Virtual Machine Package
.vph
Settings
VirtualPhotographer Custom Settings
.vpl
Audio
Karaoke Player Playlist
.vpm
Misc
Vox Proxy Macro File
.vpm
Audio
Garmin Voice File
.vqf
Audio
TwinVQ Audio File
.vrd
Data
Visio Report Definition File
.vrf
Audio
Ventrilo Audio Recording
.vrl
3D Image
VRML Virtual World
.vrml
Web
VRML File
.vro
Video
DVD Video Recording Format
.vs
Misc
Vivid Include File
.vscontent
Data
Visual Studio Content File
.vsd
Vector Image
Visio Drawing File
.vsdisco
Web
DISCO Dynamic Discovery Document
.vsi
Compressed
Visual Studio Content Installer File
.vsp
Video
VideoStudio Project File
.vspscc
Developer
Visual Studio Project Source Control File
.vss
Raster Image
Visio Stencil File
.vssscc
Developer
Visual Studio Solution Source Control File
.vst
Raster Image
Targa Bitmap Image
.vst
Plugin
VST Audio Plugin
.vst
Image
Visio Drawing Template
.vsw
Settings
Visio Workspace File
.vsx
Data
Visio Stencil XML File
.vtf
Game
Valve Texture File
.vtf
3D Image
3DESIGN CAD File
.vtx
Data
Visio Template XML File
.vtx
3D Image
Anim8or 3D Model
.vue
Settings
FoxPro 2.x View Settings
.vue
3D Image
E-on Vue Scene File
.vvd
3D Image
Vivid 3D Scanner Element File
.vw
Text
Volkswriter Text File
.vwx
3D Image
VectorWorks 2008 Design File
.vxd
System
Virtual Device Driver
.vxml
Data
VoiceXML File
.vyf
Audio
Samsung Digital Voice Recorder File
W File Extensions
File types with extensions that start with the letter W.
Extension
File Type
File Description
.w
Developer
OpenEdge Architect Source Code File
.w01
Audio
Yamaha SY Series Wave File
.w02
Data
Split Archive File
.w32
Video
WinCAPs Subtitle File
.w3g
Game
Warcraft 3 Replay File
.w3m
Game
Warcraft III Map File
.w3n
Game
Warcraft III Expansion Campaign File
.w3x
Game
Warcraft III Expansion Map FIle
.w3z
Game
WarCraft III Saved Game File
.wab
Data
Windows Address Book
.wad
Compressed
Compressed Game Data
.wad
Game
Wally Game Texture Archive
.wagame
Game
Worms Armageddon Game Recording
.wal
Game
Quake 2 Texture File
.wal
Misc
Winamp Modern Skin
.war
Compressed
Java Web Archive
.wav
Audio
WAVE Audio File
.wav
Audio
DTS-WAV File
.wave
Audio
WAVE Sound File
.wax
Audio
Windows Media Audio Redirect
.wb1
Data
Corel Quattro Pro File
.wb1
Raster Image
Webshots Picture File
.wb2
Data
Corel Quattro Pro File
.wb3
Data
Corel Quattro Pro 7 and 8 File
.wba
Misc
WindowBlinds Compressed Skin
.wbc
Raster Image
Webshots Collection File
.wbd
Raster Image
Webshots Picture File
.wbk
Backup
Word Document Backup
.wbk
Text
WordPerfect Workbook
.wbmp
Raster Image
Wireless Bitmap Image File
.wbt
Game
Toribash Help File
.wbz
Raster Image
Webshots Download Picture File
.wcd
Data
Works Calendar File
.wcf
Text
WebEx Saved Chat Session
.wcm
Misc
Microsoft Works Communications Script
.wcm
Executable
WordPerfect Macro
.wcp
Video
WinDVD Creator Project File
.wcz
Settings
Chameleon Clock Wallpaper File
.wdb
Data
Microsoft Works Database
.wdgt
System
Dashboard Widget
.wdgt
Web
Opera Widget
.wdl
Developer
World Definition Language Script
.wdp
Raster Image
Windows Media Photo File
.wdq
Data
Offline Explorer Queue File
.wea
Data
Ecotect Weather File
.web
Raster Image
Xara Web Format
.webarchive
Web
Safari Web Archive
.webloc
Web
Mac OS X Website Location
.wer
System
Windows Error Report
.wfb
Audio
WaveFront Sound Bank
.wfc
Settings
Windows Wireless Network Settings FIle
.wfd
Audio
WaveFront Drum Kit File
.wfd
Data
Wayfinder Map File
.wfm
Data
dBASE Form
.wfp
Audio
WaveFront Program File
.wgf
Game
Widelands Game File
.wgp
Data
Web Gallery Project
.wgs
Image
Walk-Graph Segment
.wgt
Web
Opera Widget File
.wgt
Data
IMPS Data File
.wgt
Data
XNBC Synaptic Weights File
.wgz
Text
S60 Web Runtime Widget Package
.whtt
Web
HTTrack Website Copier File
.wi
Raster Image
Wavelet Image
.wic
Image
J Wavelet Image
.widget
Executable
Yahoo! Widget
.wim
Disk
Windows Imaging Format File
.win
Backup
FoxPro Window Settings
.win
Backup
.windowslivecontact Data
Windows Backup File
Windows Live Contacts File
.wiz
Executable
Microsoft Wizard File
.wjf
Backup
WinZip Job File
.wjr
Data
ReGet Deluxe Data File
.wk1
Data
Lotus Worksheet
.wk2
Data
Lotus 2 Worksheet
.wk3
Data
Lotus 3 Worksheet
.wk4
Data
Lotus 4 Worksheet
.wk5
Data
Lotus 5 Worksheet
.wke
Data
Lotus 1-2-3 Educational Version Worksheet
.wki
Data
Lotus 2 Worksheet
.wks
Data
Works Spreadsheet
.wks
Data
Lotus 1-2-3 Spreadsheet
.wku
Data
Lotus 1-2-3 Spreadsheet
.wl6
Game
Wolfenstein 3D Data File
.wlmp
Data
Windows Live Movie Maker Project File
.wm
Video
Windows Media File
.wma
Audio
Windows Media Audio File
.wmd
Video
Windows Media Download Package
.wmdb
Data
Windows Media Database File
.wmf
Vector Image
Windows Metafile
.wmf
Game
Widelands Map File
.wml
Web
Wireless Markup Language File
.wmmp
Video
Windows Movie Maker Project File
.wmo
Game
World of Warcraft World Map Object
.wmp
Image
Windows Media Photo File
.wms
Settings
Windows Media Skin
.wmv
Video
Windows Media Video File
.wmx
Video
Windows Media Redirector
.wmz
Settings
Compressed Windows Media Player Skin
.wn
Text
WriteNow Text Document
.wnk
Image
Wink Screen Capture
.woa
Web
WebObjects Application
.wor
Data
MapInfo Workspace File
.workflow
Executable
Automator Workflow
.wot
Compressed
Web Of Trust File
.wow
Audio
Grave Composer Music Module
.wp
Text
WordPerfect Document
.wp3
Video
Microsoft Photo Story Project File
.wp4
Text
WordPerfect 4 Document
.wp5
Text
WordPerfect 5 Document
.wp6
Text
WordPerfect 6 Document
.wp7
Text
WordPerfect 7 Document
.wpa
Text
ACT! Word Processing Document
.wpc
Data
Pazzles Cutting File
.wpc
Data
WordPad Converter File
.wpd
Text
602Text Word Processing Document
.wpd
Text
WordPerfect Document
.wpd
Text
ACT! 2 Word Processing Document
.wpf
Data
WordPerfect Form
.wpg
Vector Image
WordPerfect Graphic File
.wpk
Audio
Nero Wave Editor File
.wpk
Executable
WordPerfect Macro
.wpl
Misc
Windows Media Player Playlist
.wpl
Text
DEC WPS Plus Text Document
.wpm
Misc
WordPerfect Macro
.wpo
Data
Technopress Waypoint 2D File
.wpo
Data
HOLUX Waypoint File
.wpp
Web
Serif WebPlus Project
.wpp
Settings
WordPerfect Color Palette
.wproj
Audio
Wwise Project
.wps
Text
Kingsoft Writer Document
.wps
Text
Microsoft Works Word Processor Document
.wpt
Text
WordPerfect Template
.wpw
Text
WP Works Word Processor File
.wpx
System
Printer Description File
.wq1
Data
Quattro Pro for DOS Spreadsheet File
.wq2
Data
Quattro Pro for DOS Spreadsheet File
.wrf
Web
WebEx Recording
.wri
Text
Windows Write Document
.wrk
Audio
Cakewalk Music Project
.wrl
3D Image
VRML World
.wrp
3D Image
Geomagic 3D Wrap File
.wrpl
Game
Widelands Saved Game File
.wrpl.wgf
Game
Widelands Initial Saved Game File
.wrz
3D Image
VRML World
.ws
Executable
Windows Script
.wsc
Developer
Windows Script Component
.wsd
Text
WordStar Document
.wsdl
Web
Web Services Description Language File
.wsf
Executable
Windows Script File
.wsh
Text
Windows Script Host Settings
.wsi
Data
Wise Package Studio Installer Package
.wsm
Data
Wise Package Studio Merge Module
.wsz
Misc
Winamp Classic Skin
.wtb
Data
Win-Test Binary Log File
.wtd
Game
Grand Theft Auto IV Textures File
.wtf
Game
World of Warcraft Text File
.wtr
Data
Encarta File
.wtv
Video
Windows Media Center Video File
.wus
Audio
WUTG Tagged Audio File
.wut
Audio
WUTG Tag File
.wv
Audio
WavPack Audio File
.wvc
Audio
WavPack Correction File
.wvl
Raster Image
Wavelet Image
.wvx
Video
Windows Media Video Redirector
.wwd
Misc
Works Wizard File
.wwu
Audio
Wwise Work Unit
.wx
Game
Flight Simulator Weather File
.wz
Game
MapleStory Game Data File
.wz
Game
Warzone 2100 Data File
.wzmul
Misc
WinZip Registration File
X File Extensions
File types with extensions that start with the letter X.
Extension
File Type
File Description
.x
Developer
Lex Source Code File
.x32
Plugin
Adobe Xtra File
.x3d
Image
Xara3D Project
.x4k
Settings
XML4King Configuration File
.x64
Disk
Commodore 64 Disk Image
.xa
Disk
GEAR CD/DVD Disc Image
.xa
Audio
PlayStation Audio File
.xa
Audio
The Sims Audio File
.xaml
Developer
XAML File
.xap
Developer
XACT Project
.xap
Executable
Silverlight Application Package
.xar
Vector Image
Xara Xtreme Drawing
.xas
Data
Pro/ENGINEER Assembly Instance Accelerator
File
.xbe
Game
Xbox Executable File
.xbk
Data
SMART Notebook File
.xbm
Image
X11 Bitmap Graphic
.xbsav
Game
Mass Effect 2 Xbox Saved Game
.xcf
Raster Image
GIMP Image File
.xcode
Developer
Xcode Project
.xcodeproj
Developer
Xcode Project
.xcu
Settings
OpenOffice.org Configuration File
.xdb
Data
Symantec Virus Database File
.xdb
Data
PowerDesigner Database Definition File
.xdl
Text
XML Schema File
.xdl
Text
Oracle Expert Definition Language File
.xdp
Data
XML Data Package
.xdr
Settings
XML-Data Reduced File
.xds
Game
DS Game Maker Project File
.xds
Data
LcdStudio Design File
.xdw
Page Layout
Fuji Xerox DocuWorks File
.xef
Compressed
WinAce Encrypted File
.xef
Data
eManager Form Data
.xem
Settings
eManager Metered Units
.xem
Data
PowerDesigner Model definition File
.xen
Game
Guitar Hero III Data File
.xep
Settings
eManager File Packaging Information
.xes
Settings
eManager Skins Definition
.xet
Settings
eManager Process Definition
.xev
Settings
eManager Auto-Update File
.xex
Game
Xbox 360 Executable File
.xez
Compressed
eManager Template Package
.xfd
Data
XFD File
.xfdl
Web
XFDL File
.xfl
Video
Flash Movie Archive
.xfn
Font
Ventura Printer Font
.xfo
Data
XSL-FO Formatted Form
.xfs
Audio
eRacer Sound File
.xft
Data
Adobe Form Designer 5.0 File
.xft
Font
ChiWriter Printer Font
.xgs
Settings
XACT Global Settings File
.xht
Web
XHTML File
.xhtml
Web
Extensible Hypertext Markup Language File
.xi
Audio
Fasttracker 2 Extended Instrument File
.xib
Developer
Interface Builder File
.xif
Image
ScanSoft Pagis File
.xl
Data
Excel Spreadsheet
.xla
Plugin
Excel Add-In File
.xlam
Plugin
Excel Open XML Macro-Enabled Add-In
.xlb
Settings
Excel Toolbars File
.xlc
Data
Excel Chart
.xlf
Text
XLIFF Document
.xlgc
Data
ExpressK Database File
.xlk
Backup
Excel Backup File
.xll
Plugin
Excel Add-In File
.xlm
Misc
Excel Macro
.xlnk
Misc
XML Shortcut File
.xlr
Data
Works Spreadsheet
.xls
Data
Excel Spreadsheet
.xlsb
Data
Excel Binary Spreadsheet
.xlsm
Data
Excel Open XML Macro-Enabled Spreadsheet
.xlsx
Data
Microsoft Excel Open XML Document
.xlt
Data
Excel Template
.xltm
Data
Excel Open XML Macro-Enabled Spreadsheet
Template
.xltx
Data
Excel Open XML Spreadsheet Template
.xlv
Plugin
Excel Visual Basic Module
.xlw
Data
Excel Workbook
.xm
Audio
Fasttracker 2 Extended Module
.xmb
Game
Age of Empires Game Data File
.xmb
Game
X-Wing Mission Briefing File
.xmcd
Data
Mathcad Worksheet File
.xmcdz
Compressed
Mathcad Compressed Worksheet File
.xmd
Disk
GameJack Disc Image
.xmf
Audio
Extensible Music File
.xmf
Disk
GameJack Disc Image File
.xmi
Audio
Extended MIDI File
.xml
Data
XML File
.xmlper
Data
LeCroy Binary Waveform File
.xmp
Misc
Extensible Metadata Platform File
.xmpz
Data
Miradi XML Project File
.xmz
Audio
FastTracker 2 Extended Module
.xnk
Misc
Exchange Shortcut
.xof
Image
Reality Lab 3D Image File
.xol
Misc
Swiss Map Overlay
.xol
Misc
PowerDesigner Object Language File
.xom
Game
Worms 3D Object File
.xp
Audio
Fastracker 2 Pattern
.xpaddercontroller Settings
Xpadder Controller Profile
.xpd
Web
XML Pipeline Document
.xpd
Game
PlayStation Store PSP License File
.xpg
Data
Autoplay Media Studio Exported Page
.xpi
Compressed
Mozilla Installer Package
.xpj
Data
Micro Planner X-Pert Project File
.xpk
Game
WWE RAW Model File
.xpl
Settings
LcdStudio Playlist File
.xpm
Image
X11 Pixmap Graphic
.xpm
Data
Micro Planner Manager File
.xpr
3D Image
Pro/ENGINEER Part Instance Accelerator File
.xpr
Misc
PressIt Disc Label
.xps
Page Layout
XML Paper Specification File
.xpt
Plugin
Mozilla Firefox Component
.xpt
Data
SAS Transport File
.xqt
Executable
SuperCalc Macro File
.xrm-ms
System
Microsoft Security Certificate
.xrns
Audio
Renoise Song File
.xrp
Data
RationalPlan Project File
.xry
Data
XRY Data File
.xs
Game
Age of Empires 3 Map AI Generator
.xsb
Audio
XACT Sound Bank
.xsd
Developer
XML Schema Definition
.xsi
Image
Softimage XSI 3D Image
.xsl
Data
XML Style Sheet
.xslt
Data
XSL Transformation
.xsn
Data
InfoPath Form Template File
.xspf
Audio
XSPF Playlist File
.xst
Settings
WebSphere Query Template
.xt
Audio
Fastracker 2 Track
.xt
Developer
Xdebug Trace File
.xtm
Data
Xtremsplit Data File
.xtm
Data
CmapTools Exported Topic Map
.xtp
Data
XTree Data File
.xtreme
Settings
Winstep Xtreme Theme Pack
.xul
Web
XML User Interface Language File
.xv0
3D Image
Lattice XVL Structure File
.xv3
3D Image
Lattice XVL Geometry File
.xvid
Video
Xvid-Encoded Video File
.xwb
Audio
XACT Wave Bank
.xwd
Image
X Windows Dump
.xwf
Misc
OmniPage Workflow File
.xwk
Settings
Crosstalk Communicator Keyboard Mapping File
.xwp
Text
Xerox Writer Text Document
.xwp
Text
Crosstalk Session File
.xwp
Text
XMLwriter Project
.xws
Image
Xara Webstyle Graphic
.xx
Compressed
XXEncoded File
.xxd
Data
Brixx Planner Calendar
.xxe
Encoded
XXEncoded File
.xxx
Misc
Compucon Singer Embroidery File
.xy
Text
XYWrite Document
.xy3
Text
XYWrite III Document
.xyp
Text
XYWrite Plus Document
.xys
Executable
XYplorer Script File
.xyw
Text
XYWrite for Windows Document
.xyz
Data
Molecule Specification File
.xz
Compressed
XZ Compressed Archive
.x_b
3D Image
Parasolid Model Part File
.x_t
3D Image
Parasolid Model Part File
Y File Extensions
File types with extensions that start with the letter Y.
Extension
File Type
File Description
.y
Compressed
Amiga Yabba Compressed File
.y
Raster Image
Subsampled Raw YUV Image
.yab
Developer
Yabasic Source Code
.yal
Vector Image
Arts & Letters Clipart Library
.yam
Data
Yahoo! Auctions Data
.yaodl
Image
Powerflip 3D Image File
.ybk
Text
YanCEyWare Reader eBook
.ybk
Misc
Microsoft Encarta Yearbook File
.ycm
Game
Yugioh Card Maker File
.ydc
Game
Yu-Gi-Oh! Card Deck File
.ydl
Image
Powerflip YAODL 3D Image File
.ydr
Game
Yu-Gi-Oh! Power of Chaos Replay File
.yenc
Encoded
yEnc File
.ymg
Misc
Yahoo! Messenger File
.yml
Text
YAML Document
.yml2
Developer
YML Script
.ymp
Developer
YaST Metapackage File
.ync
Encoded
yEnc Encoded File
.yps
Misc
Yahoo! Messenger Data File
.yuv
Video
YUV Video File
.yuv
Image
YUV Encoded Image File
.yz
Compressed
YAC Compressed File
Z File Extensions
File types with extensions that start with the letter Z.
Extension
File Type
File Description
.z
Compressed
Unix Compressed File
.z01
Compressed
WinZip First Split Zip File
.z02
Compressed
WinZip Second Split Zip File
.z03
Compressed
WinZip Third Split Zip File
.z04
Compressed
WinZip Fourth Split Zip File
.z1
Misc
ZoneAlarm Renamed VB File
.z2f
Game
Zoo Tycoon 2 Object File
.z64
Game
Nintendo 64 Game ROM
.zap
Settings
Software Installation Settings
.zap
Data
Zone Alarm Pro Data File
.zap
Compressed
FileWrangler Archive
.zdb
Data
Quicken Online File
.zdb
Data
EPSQ Database
.zdc
Data
CD Catalog Expert Database File
.zdl
Page Layout
Avery DesignPro Label File
.zdp
Page Layout
Avery DesignPro Label File
.zds
Game
GZDoom Save File
.zfo
Web
XSL-FO Online Form
.zfsendtotarget Compressed
Compressed Folder
.zfx
Page Layout
ZipLogix ZipForm File
.zgm
Image
Zenographics Image File
.zhtml
Web
Secure IE Zipped HTML File
.zif
Raster Image
Zooming Image Format File
.zip
Compressed
Zipped File
.zipx
Compressed
Extended Zip File
.zix
Compressed
WinZix Compressed File
.zix
Data
Quicken Online File
.zl
Compressed
Zlib Compressed File
.zl9
Executable
ZoneAlarm Quarantined EXE File
.zm1
Video
ZSNES Movie #1 File
.zm1
Misc
ZoneAlarm Renamed MDA File
.zm2
Video
ZSNES Movie #2 File
.zm2
Misc
ZoneAlarm Renamed MDZ File
.zm3
Video
ZSNES Movie #3 File
.zm3
Misc
ZoneAlarm Renamed NCH File
.zm9
Misc
ZoneAlarm MailSafe Renamed Zip File
.zmap
Game
Zombies Ate My Neighbors Map File
.zmc
Data
ZoneAlarm Quarantine File
.zml
Misc
Zooming Markup Language File
.zmv
Video
ZSNES Movie File
.zno
Page Layout
Zinio Electronic Magazine File
.zon
Settings
Collection Building Custom Zone File
.zoo
Compressed
Zoo Compressed File
.zoo
Game
Zoo Tycoon Saved Game
.zpi
Compressed
Zipped File
.zpi
Settings
PDF Converter Index File
.zpl
Data
Zoom Player Play List
.zs0
Game
ZSNES Slot 0 Save State File
.zs1
Game
ZSNES Slot 1 Save State File
.zs2
Game
ZSNES Slot 2 Save State File
.zs3
Game
ZSNES Slot 3 Save State File
.zs4
Game
ZSNES Slot 4 Save State File
.zs5
Game
ZSNES Slot 5 Save State File
.zs6
Game
ZSNES Slot 6 Save State File
.zs7
Game
ZSNES Slot 7 Save State File
.zs8
Game
ZSNES Slot 8 Save State File
.zs9
Game
ZSNES Slot 8 Save State File
.zsd
Game
Dave Mirra Freestyle BMX Data File
.zst
Game
ZSNES Save File
.zt
3D Image
Mental Ray Image Depth File
.ztd
Game
Zoo Tycoon Data Archive
.ztf
Misc
DVD Label Template File
.ztmp
Game
Steam Compressed Game Resource File
.ztr
Misc
DVD Label Template Media File
.zul
Web
ZK User Interface File
.zvd
Audio
ZyXEL Voice File
.zvr
Audio
SAFA Media Audio File
.zvz
Web
Possible Virus File
.zw
Text
Chinese Text File
.zz
Compressed
Zzip Compressed Archive