| File extension |
File description |
Developer/Producer |
| .a |
Static Library |
N/A |
| .a00 |
ALZip Second Split Archive File |
ESTsoft |
| .a01 |
ALZip Third Split Archive File |
ESTsoft |
| .a02 |
ALZip Fourth Split Archive File |
ESTsoft |
| .a1wish |
Audials Wishlist File |
RapidSolution Software |
| .a26 |
Atari 2600 ROM |
N/A |
| .a2b |
Adlib Tracker II Instrument Bank |
Adlib |
| .a2c |
Alice Object File |
Carnegie Mellon University |
| .a2i |
Adlib Tracker II Instrument File |
Adlib |
| .a2l |
ASAP2 ECU Description File |
ASAM MCD-2MC |
| .a2m |
Adlib Tracker II File |
Adlib |
| .a2p |
Adlib Tracker II Pattern File |
Adlib |
| .a2t |
Adlib Tracker II Tiny Module File |
Adlib |
| .a2theme |
Aston 2 Theme File |
Gladiators Software |
| .a2w |
Alice World |
Carnegie Mellon University |
| .a3l |
Authorware 3 Library |
Adobe Systems |
| .a3m |
Authorware 3 Macintosh File |
Adobe Systems |
| .a3w |
Authorware 3 Windows File |
Adobe Systems |
| .a4l |
Authorware 4 Library |
Adobe Systems |
| .a4m |
Authorware 4 Macintosh File |
Adobe Systems |
| .a4p |
A4Desk Pro Project File |
Avanquest Software |
| .a4w |
Authorware 4 Windows File |
Adobe Systems |
| .a52 |
Atari 5200 ROM |
N/A |
| .a5l |
Authorware 5 Library |
Adobe Systems |
| .a5w |
Alpha Five Webpage File |
Alpha Software |
| .a65 |
Authorware 6.5 File |
Adobe Systems |
| .a6p |
Authorware 6 Program |
Adobe Systems |
| .a8s |
Anim8or Script |
Steven Glanville |
| .aa |
Audible Audio Book File |
Audible |
| .aa3 |
ATRAC Audio File |
Sony |
| .aac |
Advanced Audio Coding File |
N/A |
| .aaf |
Advanced Authoring Format File |
Avid Technology |
| .aam |
Authorware Map File |
Adobe Systems |
| .aao |
Agenda At Once File |
Dataland Software |
| .aaui |
Acrobat User Interface File |
Adobe Systems |
| .aawdef |
Ad-Aware Definitions File |
Lavasoft |
| .aax |
Audible Enhanced Audiobook File |
Audible |
| .ab |
Android ADB Backup File |
Google |
| .ab1 |
DNA Electropherogram File |
N/A |
| .ab2 |
Print Shop Address Book File |
Broderbund |
| .ab3 |
PhotoImpact 3 Album File |
Ulead Systems |
| .aba |
Palm Address Book Archive |
Palm |
| .abbu |
Address Book Backup |
N/A |
| .abc |
ABC Music Notation |
N/A |
| .abcd |
AudioVisual Book Data File |
AV Books Publishers |
| .abdata |
Adobe Bridge Data File |
Adobe Systems |
| .abf |
Analysis Services Backup File |
Microsoft |
| .abi |
DNA Chromatogram File |
N/A |
| .abk |
Automatic Backup File |
N/A |
| .abkprj |
Ashampoo Backup Project |
Ashampoo |
| .abm |
Photo Album |
N/A |
| .abp |
AVS Barcode Profile |
AVS |
| .abr |
Adobe Photoshop Brushes File |
Adobe Systems |
| .abs |
Absolute Database File |
ComponentAce |
| .abw |
AbiWord Document |
AbiSource |
| .aby |
AOL Address Book File |
AOL |
| .ac |
Autoconf Script |
N/A |
| .ac$ |
AutoCAD Temporary File |
Autodesk |
| .ac3 |
Audio Codec 3 File |
N/A |
| .ac5 |
ArtCut 5 Document |
Wentai |
| .ac6 |
ArtCut 6 Document |
Wentai |
| .aca |
Agent Character Animation File |
Microsoft |
| .acb |
Adobe Photoshop Color Book File |
Adobe Systems |
| .acbl |
Adobe Color Book Legacy File |
Adobe Systems |
| .acc |
Graphics Accounts Data File |
FKJ Software |
| .accda |
Access Add-in File |
Microsoft |
| .accdb |
Access 2007 Database File |
Microsoft |
| .accdc |
Microsoft Access Signed Package |
Microsoft |
| .accde |
Access Execute Only Database |
Microsoft |
| .accdr |
Access Runtime Application |
Microsoft |
| .accdt |
Microsoft Access Database Template |
Microsoft |
| .accdu |
Access Add-in File |
Microsoft |
| .accdw |
Microsoft Access Database Link File |
Microsoft |
| .accft |
Microsoft Access Data Type Template |
Microsoft |
| .accountpicture-ms |
Windows 8 Account Picture File |
Microsoft |
| .acd |
ACID Project File |
Sony |
| .acd-bak |
Sony ACID Project Backup File |
Sony |
| .acd-zip |
Sony ACID Project With Embedded Media File |
Sony |
| .ace |
WinAce Compressed File |
WinAce |
| .acf |
Steam Application Cache File |
Valve |
| .acfm |
Adobe Composite Font Metrics File |
Adobe Systems |
| .acg |
Audio Comparer Group File |
Bolide Software |
| .acl |
AutoCorrect List File |
Microsoft |
| .acm |
Interplay Audio File |
BioWare |
| .aco |
Adobe Photoshop Color Swatch File |
Adobe Systems |
| .acorn |
Acorn Image |
Flying Meat |
| .acp |
Alfresco Content Package |
Alfresco Software |
| .acr |
ACRobot Script |
Acr-Soft |
| .acrobatsecuritysettings |
Adobe Acrobat Security Settings File |
Adobe Systems |
| .acrodata |
Acrobat Data File |
Adobe Systems |
| .acroplugin |
Adobe Acrobat Plug-in |
Adobe Systems |
| .acs |
Agent Character File |
Microsoft |
| .acsm |
Adobe Content Server Message File |
Adobe Systems |
| .act |
ADPCM Compressed Audio File |
N/A |
| .action |
Automator Action |
Apple |
| .actm |
AutoCAD Action Macro File |
Autodesk |
| .actx |
DS Game Maker Action Description File |
Invisionsoft |
| .acv |
Photoshop Curves File |
Adobe Systems |
| .acw |
Windows Accessibility Wizard File |
Microsoft |
| .acx |
Atari ST Program |
Atari |
| .ad |
After Dark Screensaver |
Berkeley Systems |
| .ada |
Ada Source Code |
N/A |
| .adadownload |
Adobe Download Assistant Partial Download File |
Adobe Systems |
| .adb |
Alpha Five Database File |
Alpha Software |
| .adc |
Scanstudio 16 Color Image |
Steffen Gutmann |
| .adcp |
Adobe Device Central Project File |
Adobe Systems |
| .add |
Dynamics AX Developer Documentation File |
Microsoft |
| .addin |
Visual Studio Add-in Definition File |
Microsoft |
| .addon |
CFS Console Add-on File |
Zaplots |
| .ade |
Access Project Extension |
Microsoft |
| .adf |
ESRI ArcInfo Binary Grid Format |
ESRI |
| .adg |
Ableton Device Group |
Ableton |
| .adi |
Active@ Disk Image Backup File |
Active@ Data Recovery Software |
| .adm |
Administrative Template File |
N/A |
| .adml |
Group Policy Language-Specific Administrative Template |
Microsoft |
| .admx |
Group Policy Administrative Template File |
Microsoft |
| .adn |
Access Blank Project Template |
Microsoft |
| .ado |
Adobe Photoshop Duotone Options File |
Adobe Systems |
| .adox |
ActivDox Document |
ActivDox |
| .adp |
Access Project |
Microsoft |
| .adpp |
Adobe Device Profile Package |
Adobe Systems |
| .adr |
Opera Bookmarks File |
N/A |
| .ads |
Ada Specification File |
N/A |
| .adt |
ACT! Document Template |
Sage Software |
| .adts |
Audio Data Transport Stream File |
N/A |
| .adu |
Addict User Dictionary File |
Addictive Software |
| .adv |
Nortek Acoustic Doppler Velocimeter File |
Nortek |
| .advs |
Adobe Device Central Device Set |
Adobe Systems |
| .adx |
Approach Index File |
N/A |
| .adz |
Compressed Amiga Disk File |
N/A |
| .aea |
AdWords Editor Archive |
Google |
| .aec |
Cinema 4D After Effects Composition |
MAXON |
| .aep |
After Effects Project |
Adobe Systems |
| .aepkey |
Advanced Encryption Package Key File |
InterCrypto |
| .aepx |
After Effects XML Project |
Adobe Systems |
| .aes |
AES Crypt Encrypted File |
Packetizer |
| .aet |
After Effects Project Template |
Adobe Systems |
| .aetx |
After Effects XML Project Template |
Adobe Systems |
| .aex |
Alpha Five Compiled Global Functions File |
Alpha Software |
| .af2 |
Micrografx ABC FlowCharter 2 File |
iGrafx |
| .af3 |
Micrografx ABC FlowCharter 3/4 File |
iGrafx |
| .afc |
Mass Effect 2 Audio File |
Electronic Arts |
| .afd |
Alphacam Flame Drawing |
Planit |
| .afe |
Avid File Exchange File |
Avid Technology |
| .aff |
AFF Disk Image |
Basis Technology |
| .afm |
Adobe Font Metrics File |
N/A |
| .afp |
FileProtector Encrypted File |
AndrosaSoft |
| .afploc |
Apple Filing Protocol Location |
Apple |
| .afs |
STAAD.foundation Project File |
Bentley Systems |
| .aft |
Ancestry.com Family Tree Database |
Ancestry.com |
| .afx |
Auto FX Photo/Graphic Edges Image |
Auto FX Software |
| .agb |
Game Boy Advance ROM |
N/A |
| .agd |
AgileGraph Data File |
AgileGraph |
| .age3scn |
Age of Empires 3 Scenario File |
Microsoft |
| .aggr |
Adobe Captivate Aggregate File |
Adobe Systems |
| .agi |
Asterisk Gateway Interface File |
Digium |
| .agif |
Active GIF Creator Project |
Image Tools Group |
| .agm |
DTS Multi-channel Pro Packer File |
DTS |
| .agp |
ArtGem Project File |
RL Vision |
| .agr |
Ableton Groove File |
Ableton |
| .ahd |
Dynamics AX Online Help Data File |
Microsoft |
| .ahi |
Dynamics AX Online Help Index File |
Microsoft |
| .ahk |
AutoHotkey Script |
AutoHotkey |
| .ahl |
eMule Metadata File |
eMule |
| .ahs |
Adobe Halftone Screen File |
Adobe Systems |
| .ahu |
Adobe Photoshop HSL File |
Adobe Systems |
| .ahx |
WinAHX Tracker Module |
N/A |
| .ai |
Adobe Illustrator File |
Adobe Systems |
| .aia |
Adobe Illustrator Action File |
Adobe Systems |
| .aic |
Advanced Image Coding File |
N/A |
| .aif |
Audio Interchange File Format |
Apple |
| .aifb |
AIF Builder Project File |
Symbian |
| .aifc |
Compressed Audio Interchange File |
N/A |
| .aiff |
Audio Interchange File Format |
Apple |
| .aim |
AIMMS ASCII Model File |
Paragon Decision Technology |
| .aimppl |
AIMP Playlist File |
AIMP DevTeam |
| .ain |
Source Engine Compiled AI Nodegraph File |
Valve |
| .aip |
Illustrator Plug-in |
Adobe Systems |
| .air |
Adobe AIR Installation Package |
Adobe Systems |
| .ais |
ACDSee Image Sequence File |
ACD Systems |
| .ait |
Adobe Illustrator Template |
Adobe Systems |
| .aiu |
Advanced Installer Updates Configuration File |
Caphyon |
| .aiv |
AIVault Data File |
EllaZ Systems |
| .ajp |
CCTV Video File |
N/A |
| .akp |
Akai Sampler File |
N/A |
| .al |
A-Law Compressed Sound Format |
N/A |
| .alac |
ALAC Encoded Audio File |
Apple |
| .alaw |
A-Law Compressed Sound Format |
N/A |
| .alb |
Alpha Five Library |
Alpha Software |
| .albm |
HP Photo Printing Software Album File |
HP |
| .alc |
Ableton Live Clip File |
Ableton |
| .ald |
Dynamics AX Application Label Data File |
Microsoft |
| .ale |
Avid Log Exchange File |
Avid Technology |
| .alf |
ACT! Lookup File |
The Sage Group |
| .ali |
Dynamics AX Label Index File |
Microsoft |
| .all |
Cubasis Project File |
Steinberg |
| .alp |
Ableton Live Pack File |
Ableton |
| .alr |
ADRIFT Language Resource File |
Campbell Wild |
| .als |
Ableton Live Set File |
Ableton |
| .alt |
Dynamics AX Temporary File |
Microsoft |
| .alv |
Adobe Photoshop Levels File |
Adobe Systems |
| .alx |
ActiveX Layout Control File |
Microsoft |
| .alz |
ALZip Archive |
ESTsoft |
| .am |
Automake Makefile Template |
Automake |
| .am1 |
Adventure Maker |
The Adventure Maker Team |
| .am4 |
AutoPlay Media Studio 4 Project File |
Indigo Rose |
| .am5 |
AutoPlay Media Studio 5 Project File |
Indigo Rose |
| .am6 |
AutoPlay Media Studio 6 Project |
Indigo Rose |
| .am7 |
AutoPlay Media Studio 7 Project |
Indigo Rose |
| .amb |
All My Books Database File |
Bolide Software |
| .amc |
AMC Video File |
N/A |
| .amf |
Advanced Module File |
N/A |
| .amfm |
Adobe Multiple Font Metrics File |
Adobe Systems |
| .aml |
ACPI Machine Language File |
The ACPICA Project |
| .amm |
All My Movies Database File |
Bolide Software |
| .amp |
Adobe Photoshop Curves Map File |
Adobe Systems |
| .amr |
Adaptive Multi-Rate Codec File |
N/A |
| .ams |
Adobe Monitor Setup file |
N/A |
| .amsorm |
OnLine Ringman Auction Client File |
Xcira |
| .amu |
PictureGear Studio Photo Album File |
Sony |
| .amv |
Anime Music Video File |
N/A |
| .amx |
Adobe Motion Exchange File |
Adobe Systems |
| .amxd |
Ableton Max Patch File |
Ableton |
| .amxx |
AMX Mod X Plugin File |
N/A |
| .amz |
Amazon MP3 Downloader File |
Amazon |
| .an |
Adobe Edge Animate Project File |
Adobe Systems |
| .an1 |
Street Atlas USA Draw File |
DeLorme |
| .an2 |
Croc Legend of the Gobbos Animation File |
Argonaut Software |
| .an8 |
Anim8or File |
Steven Glanville |
| .ane |
Adobe AIR Native Extension |
Adobe Systems |
| .ani |
Windows Animated Cursor |
Microsoft |
| .anim |
Maya Animation File |
Autodesk |
| .animset |
FaceFX Animation Set File |
OC3 Entertainment |
| .animset_ingame |
FaceFX In-Game Animation Set File |
OC3 Entertainment |
| .anjuta |
Anjuta IDE Project File |
The GNOME Project |
| .anm |
3D Animation File |
N/A |
| .anme |
Anime Studio Document |
Smith Micro |
| .ann |
Help Annotations |
N/A |
| .annot |
Adobe Digital Editions Annotations File |
Adobe Systems |
| .ans |
ANSI Text File |
N/A |
| .ansym |
Adobe Edge Animate Library File |
Adobe Systems |
| .antispam5 |
Personal AntiSpam Settings File |
Intego |
| .anx |
HotDocs Answer File |
HotDocs |
| .any |
AnyRail Layout Plan |
DRail Modelspoor Software |
| .aob |
DVD-Audio Audio Object File |
N/A |
| .aod |
Dynamics AX Object Data File |
Microsoft |
| .aof |
Artlantis Object File |
Abvent Group |
| .aoi |
Art of Illusion 3D Scene |
Peter Eastman |
| .aois |
CFS Console Add-on Installer Settings File |
Zaplots |
| .aol |
America Online File |
AOL |
| .aom |
After Effects Output Module |
Adobe Systems |
| .aos |
ARCHOS PCtablet Firmware File |
ARCHOS |
| .ap |
Active Page |
Fifth Generation Systems |
| .apa |
RSView Development Project Archive |
Rockwell Automation |
| .apalbum |
Aperture Album File |
Apple |
| .apd |
ACDSee Photo Document |
ACD Systems |
| .ape |
AVS Plugin Effects File |
Nullsoft |
| .apf |
Adobe Profile File |
Adobe Systems |
| .aph |
Ability Album File |
Ability Plus Software |
| .api |
Acrobat Plug-in |
Adobe Systems |
| .apk |
Android Package File |
Google |
| .apl |
ArcPad Layer File |
ESRI |
| .aplg |
Audials Plug-in |
RapidSolution Software |
| .aplibrary |
Aperture Library |
Apple |
| .aplp |
Audials Plug-in Package |
RapidSolution Software |
| .apm |
Aldus Placeable Metafile Image |
Adobe Systems |
| .apng |
Animated Portable Network Graphic |
N/A |
| .apnx |
Amazon Page Number Index File |
Amazon |
| .app |
Mac OS X Application |
Apple |
| .appdownload |
Mac App Store Partially Downloaded App |
Apple |
| .applescript |
AppleScript File |
Apple |
| .applet |
Eclipse Java Applet Policy File |
Eclipse |
| .application |
ClickOnce Deployment Manifest File |
Microsoft |
| .appref-ms |
Microsoft Application Reference File |
Microsoft |
| .appup |
Erlang Application Upgrade File |
Erlang |
| .appx |
Windows 8 App Package |
Microsoft |
| .appxsym |
Windows 8 App Package Symbols File |
Microsoft |
| .appxupload |
Windows 8 App Upload Package |
Microsoft |
| .apr |
ArcView Project File |
ESRI |
| .aps |
Visual C++ Resource File |
Microsoft |
| .apt |
Almost Plain Text File |
N/A |
| .apx |
Ability Photopaint Studio Image |
Ability Plus Software |
| .apxl |
Keynote Presentation Data File |
Apple |
| .apz |
Autoplay Media Studio Exported Project |
Indigo Rose |
| .ap_ |
ADT Android Developer Package |
Google |
| .aqm |
AlpineQuest Map File |
MOBAC |
| .aqt |
AQTitle Subtitles File |
N/A |
| .ar |
Unix Static Library |
N/A |
| .ara |
Archivaldo Resource Archive |
LittleApps |
| .arc |
Symbian OS Backup File |
Nokia |
| .arch00 |
F.E.A.R. Game Archive |
Sierra |
| .arcut |
Prelude Rough Cut File |
Adobe Systems |
| .ard |
ArtiosCAD Workspace File |
Esko |
| .arena |
Quake 3 Engine Arena File |
id Software |
| .arf |
WebEx Advanced Recording File |
WebEx Communicatons |
| .arff |
Attribute-Relation File Format |
University of Waikato |
| .arg |
AutoCAD Profile |
Autodesk |
| .arh |
ProTool Compressed Project File |
Siemens |
| .ari |
ARRIRAW Image |
ARRI Group |
| .aria |
Chipsounds Sound File |
Plogue |
| .ariax |
Chipsounds XML Sound File |
Plogue |
| .arj |
ARJ Compressed File Archive |
ARJ Software |
| .ark |
PowerDesk Pro Archive |
ARK11 |
| .arl |
AOL Organizer File |
AOL |
| .aro |
SteelArrow Web Application File |
Tomahawk Technologies |
| .arp |
Audition Replay File |
Redbana |
| .arpack |
ArtRage Package |
Ambient Design |
| .arr |
Advanced RAR Password Recovery Project |
Elcomsoft |
| .ars |
After Effects Render Settings File |
Adobe Systems |
| .arsc |
Android Package Resource File |
Google |
| .arscript |
ArtRage Script |
Ambient Design |
| .art |
AOL Compressed Image File |
AOL |
| .artb |
Artboard Document |
Mapdiva |
| .artproj |
Artifacts Project |
Versioned |
| .artwork |
ArtStudio Image |
DrawingHand |
| .arw |
Sony Digital Camera Image |
Sony |
| .arx |
AutoCAD Runtime Extension File |
Autodesk |
| .as |
ActionScript File |
Adobe Systems |
| .as2proj |
FlashDevelop ActionScript 2 Project File |
FlashDevelop |
| .as3proj |
FlashDevelop ActionScript 3 Project File |
FlashDevelop |
| .as4 |
askSam Backup File |
askSam Systems |
| .asa |
ASP Configuration File |
N/A |
| .asat |
Assemble SAT 3D Model File |
N/A |
| .asax |
ASP.NET Server Application File |
Microsoft |
| .asb |
Alphacam Stone VB Macro File |
Planit |
| .asc |
ActionScript Communication File |
Adobe Systems |
| .ascii |
ASCII Text File |
N/A |
| .ascs |
ActionScript Communication Server File |
Adobe Systems |
| .ascx |
ASP.NET User Control File |
Microsoft |
| .asd |
Word AutoSave File |
Microsoft |
| .asdb |
Asphyre Sphinx Archive File |
Afterwarp Development |
| .ase |
Adobe Swatch Exchange File |
Adobe Systems |
| .asec |
Android Secure Application File |
Google |
| .asf |
Advanced Systems Format File |
Microsoft |
| .ash |
Audiosurf Audio Metadata File |
Audiosurf |
| .ashbak |
Ashampoo Backup Archive |
Ashampoo |
| .ashdisc |
Ashampoo Burning Studio Image |
Ashampoo |
| .ashprj |
Ashampoo Burning Studio Project |
Ashampoo |
| .ashx |
ASP.NET Web Handler File |
Microsoft |
| .asi |
Alpha Five Variable File |
Alpha Software |
| .ask |
askSam Database |
askSam Systems |
| .asl |
Photoshop Style |
Adobe Systems |
| .asm |
Assembly Language Source Code File |
N/A |
| .asmx |
ASP.NET Web Service File |
Microsoft |
| .asnd |
Adobe Sound Document |
Adobe Systems |
| .asp |
Active Server Page |
Microsoft |
| .aspx |
Active Server Page Extended File |
Microsoft |
| .asr |
ActionScript Remote Document |
Adobe Systems |
| .ass |
Aegisub Advanced Substation Alpha File |
N/A |
| .asset |
Unity Asset File |
Unity Technologies |
| .ast |
Adobe Color Separations Table |
Adobe Systems |
| .asv |
Adobe Photoshop Selective Color File |
Adobe Systems |
| .asvf |
Asphyre Sphinx Archive File |
Afterwarp Development |
| .asw |
ACDSee Slideshow Wizard File |
ACD Systems |
| .aswcs |
Avast! Compressed Skin File |
AVAST Software |
| .asws |
Avast! Skin File |
AVAST Software |
| .asx |
Microsoft ASF Redirector File |
Microsoft |
| .asy |
Asymptote Module |
Asymptote |
| .at3 |
ATRAC3 Audio File |
Sony |
| .at5 |
Lowrance Map File |
Lowrance |
| .atahd |
ATA Hard Drive Flag File |
Puppy Linux |
| .atc |
AutoCAD Tool Catalog File |
Autodesk |
| .ate |
Office Accounting Compressed Backup File |
Microsoft |
| .atf |
Axon Text File |
Molecular Devices |
| .ath |
Alienware AlienFX Theme File |
Dell |
| .ati |
Office Accounting Updated Company File |
Microsoft |
| .atl |
Artlantis 3D Scene File |
Abvent Group |
| .atm |
Vue Atmospheres File |
E-on Software |
| .atn |
Photoshop Actions File |
Adobe Systems |
| .atom |
Atom Syndication Format |
N/A |
| .atr |
Atari Disk Image |
Atari |
| .atrac |
Sony ATRAC Audio File |
Sony |
| .ats |
Advanced ETL Transformation Script |
DB Software Laboratory |
| .att |
Web Form Post Data File |
N/A |
| .attr |
iPhoto Attributes File |
Apple |
| .atx |
ArcGIS Attribute Index File |
ESRI |
| .aty |
Association Type Placeholder |
G&A M.C. |
| .atz |
Aston Compiled Theme |
Gladiators Software |
| .au |
Audio File |
N/A |
| .au3 |
AutoIt v3 Script |
AutoIt |
| .aud |
Video Game Compressed Audio File |
N/A |
| .aup |
Audacity Project File |
Audacity |
| .aut |
AutoIt Script File |
Jonathan Bennett |
| .automaticdestinations-ms |
Windows Jump List File |
Microsoft |
| .autoplay |
AutoPlay Media Studio Project File |
Indigo Rose |
| .aux |
LaTeX Auxiliary File |
N/A |
| .auz |
Ableton Authorization File |
Ableton |
| .ava |
AvaaBook eBook |
AvaaBook |
| .avastlic |
Avast! License File |
AVAST Software |
| .avastsounds |
Avast! Soundpack File |
AVAST Software |
| .avatar |
Google Talk Avatar File |
Google |
| .avb |
Avid Bin File |
Avid |
| .avc |
Kaspersky Virus Database |
Kaspersky Lab |
| .avchd |
High Definition Video File |
Sony, Panasonic |
| .avd |
Movie Edit Pro Video Information File |
MAGIX |
| .ave |
Avid User File |
Avid Technology |
| .avenirproj |
StoryMill Project |
Mariner Software |
| .avery |
Avery Design & Print Online Label File |
Avery Dennison |
| .avgdx |
AVG Diagnostics File |
AVG Technologies |
| .avhd |
Hyper-V SnapShot File |
Microsoft |
| .avi |
Audio Video Interleave File |
Microsoft |
| .avj |
AntiVir Job File |
Avira Operations |
| .avl |
ArcView Legend File |
ESRI |
| .avp |
Avid Project File |
Avid Technology |
| .avr |
Audio Visual Research File |
N/A |
| .avs |
AviSynth Script File |
AviSynth |
| .avv |
Avid Volume Bin File |
Avid Technology |
| .avx |
ArcView Extension File |
ESRI |
| .aw |
Answer Wizard File |
Microsoft |
| .awb |
AMR-WB Audio File |
N/A |
| .awc |
Emulex AWC Firmware Update File |
Emulex |
| .awcav |
ActiveWorlds Custom Avatar File |
ActiveWorlds |
| .awd |
Microsoft Fax Document |
Microsoft |
| .awdb |
Access Walker Database File |
ISS Data Security |
| .awg |
Activeworlds Object Group File |
Activeworlds |
| .awk |
AWK Script |
Free Software Foundation |
| .awkw |
Awkwords Word Generator File |
Awkwords |
| .awlive |
Active Webcam Video File |
PY Software |
| .awm |
AllWebMenus Project File |
Likno Software |
| .awp |
Ability Write Template |
Ability Plus Software |
| .aws |
Ability Spreadsheet File |
Ability Plus Software |
| .awt |
AbiWord Template |
AbiSource |
| .aww |
Ability Write Document |
Ability Plus Software |
| .ax |
DirectShow Filter |
N/A |
| .axd |
ASP.NET Web Handler File |
Microsoft |
| .axe |
AutoRoute Map File |
Microsoft |
| .axm |
AXMEDIS Object |
AXMEDIS |
| .axp |
CDBurnerXP Audio Compilation File |
Canneverbe |
| .axt |
Adobe Photoshop Extract File |
Adobe Systems |
| .axx |
AxCrypt Encrypted File |
Axantum Software |
| .ay |
AY Chiptune File |
N/A |
| .az! |
Vuze Partial Download File |
Vuze |
| .azf |
AirZip FileSECURE File |
AirZip |
| .azs |
AirZip FileSECURE File |
AirZip |
| .azw |
Amazon Kindle eBook File |
Amazon |
| .azw1 |
Amazon Topaz eBook |
Amazon |
| .azw2 |
Kindle Active Content App File |
Amazon |
| .azw3 |
Amazon KF8 eBook File |
Amazon |
| .azw4 |
Amazon Print Replica eBook |
Amazon |
| .azz |
AZZ Cardfile Database File |
Antanas Zdramys |
| .azzx |
Uncompressed AZZ Cardfile Data File |
Antanas Zdramys |
