| .acp |
ACP is het contentpakket van Alfresco. |
| .agi |
AGI is Asterisk Gateway -interfacebestand. |
| .aidl |
AIDL is een taalbestand voor Android -interface. |
| .alb |
ALB is Alpha Five Library. |
| .alp |
ALP is Ableton Live Pack -bestand. |
| .vtm |
VTM is een visuele Tool Markup Language Document. |
| .ap_ |
AP_ is ADT Android Developer -pakket. |
| .apa |
APA is RSVIEW Development Project Archive. |
| .appex |
APPEX is OS X -applicatie- en systeemuitbreidingsbestand. |
| .appx |
APPX is Windows 8 App -pakket. |
| .arsc |
ARSC is het resource -bestand van Android -pakket. |
| .as2proj |
AS2PROJ is flashdevelop ActionScript 2 -projectbestand. |
| .au3 |
AU3 is Autoit V3 -script. |
| .autoplay |
AUTOPLAY is AutoPlay Media Studio Project -bestand. |
| .awk |
AWK is een awk -script. |
| .b |
B is Grand Theft Auto 3 opgeslagen spelbestand. |
| .bpl |
BPL is een boorplanlogboek. |
| .buildpath |
BUILDPATH is Eclipse Build Path -bestand. |
| .cob |
COB is COBOL -broncodebestand. |
| .ddp |
DDP is Delphi Diagram Portfolio -bestand. |
| .f2k |
F2K is FORTRAN Source Code -bestand. |
| .jsfl |
JSFL is animaat JSFL -scriptbestand. |
| .tk |
TK is TK -script. |
| .tpl |
TPL is documentsjabloon. |