| akr | GE LEDR Radio Serial Number Relationships Data |
| aks | AkAbak Script |
| akw | Adobe RoboHelp Help A-Keywords Index |
| al14 | TIA Portal v14 Library |
| al3 | Acord AL3 Data |
| ala | ActivTrak Log Analysis Data |
| alax | Quest III A La Carte File |
| alb | AVSnap Symbol Library |
| alb | Chief Architect Legacy Library |
| alb | Alphacam Laser VB Macro |
| alb | Epson Print CD Label Data |
| alb | Cubase VST v5 Arrangement Backup Data |
| alb3 | Adobe PageMaker for Mac Document |
| alb4 | Adobe PageMaker for Mac Document |
| alb5 | Adobe PageMaker 5 for Mac Document |
| alb6 | Adobe PageMaker 6 for Mac Document |
| album | GLC_Player Album Data |
| albw | MakeitOne Album Wrapper |
| alc | Alchemy Format Data |
| alc | Microsoft Dynamics AX Application Label Cache |
| alc | Alteryx Designer Allocate License Data |
| alc4 | Adobe PageMaker for Mac Dictionary Data |
| alco | URL Manager Pro Data |
| ald | Microsoft Dynamics AX Application Label Data |
| ald | Aldefaer v3 Data |
| ald2 | Adobe PageMaker for Mac Data |
| ald3 | Adobe PageMaker 3 for Mac Document |
| ald4 | Adobe PageMaker 4 for Mac Document |
| ald6 | Adobe PageMaker 6 for Mac Document |
| aldf | Aldefaer v4 Data |