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Computer 'A' file extensions

Below is a listing of each of the different file extensions that begin with the letter 'A'. If you are looking for a file extension that begins with something else click on one of the links below.

 # | A | B | C | D | E | F | G | H | I | J | K | L | M
N | O | P | Q | R | S | T | U | V | W | X | Y | Z
File extensions homepage

.A ADA program file or Unix library
.A3W MacroMedia Authorware 3.5 file
.ABK Autobackup file used with Corel Draw 6 and above.
.ABR Brush file for Adobe Photoshop
.ACE WinAce compressed file.
.ACR File format for medical images.
.ACT Adobe Photoshop Color table file.
.AD After Dark file or a Microsoft "Access Point" file.
.ADF Adapter description files.
.ADM After Dark screen saver module.
.ADP Microsoft Access Project
.ADR After Dark randomizer or Opera browser bookmark backup.
.AI Adobe Illustrator file.
.AIF Auto Interchange File Format (AIFF) Audio file.
.ANI Windows animated mouse cursor file.
.ANS ANSI text file.
.APK Android application package.
.ARC Short for archive, .ARC is a compressed file extracted and used with various compression utilities.
.ARJ Compressed file extracted used with various compression utilities.
.AS Short for AppleSingle, .AS is a compressed file extracted and used with various compression utilities.
.ASC ASCII Text file
.ASF Sort for Advanced Streaming Format, file developed by Microsoft. The .ASF file is generally a movie player and can be open with software such as Windows Media Player.
.ASP Microsoft Front Page Active Server Pages. To open these files use your Internet browser.
.ATO Compaq Just Burn File.
.ATY 3D Topicscape association type after export to Windows.
.AU Sun and NeXT audio file.
.AVI Microsoft Windows Movie file.
.AXX AxCrypt encrypted file.

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