| .001 |
Split Archive File |
| .4db |
4th Dimension Database Structure File |
| .4th |
Forth Language File |
| .$01 |
DOS Pipe File |
| .acd |
ACID Project File |
| .as |
ActionScript File |
| .alx |
BlackBerry Application Loader XML File |
| .asc |
PGP ASCII Armored File |
| .as3proj |
FlashDevelop ActionScript 3 Project File |
| .art |
ArtCAM Model |
| .asm |
Assembly Language Source Code File |
| .asx |
Microsoft ASF Redirector File |
| .a2w |
Alice World |
| .awk |
AWK Script |
| .a |
Static Library |
| .abc |
ActionScript Byte Code File |
| .act |
ADPCM Compressed Audio File |
| .au3 |
AutoIt v3 Script |
| .agi |
Asterisk Gateway Interface File |
| .ads |
Ada Specification File |
| .apa |
RSView Development Project Archive |
| .am6 |
AutoPlay Media Studio 6 Project |
| .am7 |
AutoPlay Media Studio 7 Project |
| .am4 |
AutoPlay Media Studio 4 Project File |