| Abbreviation | Definition |
|---|---|
| DIS | Distribution list (VAX Mail) |
| DIS | Thesaurus (CorelDraw) |
| DIZ | Description file (Description In Zip) |
| DIZ | Description In Zip |
| DKB | DKBTrace Raytraced graphics |
| DL | DL Viewer Animation Display file |
| DLD | Data (Lotus 1-2-3) |
| DLG | Digital Line Graph |
| DLG | DN Dialog resources file |
| DLG | Windows Software Development Kit Dialog resource script file |
| DLM | Data (FileMaker Pro) |
| DLS | Setup (Norton Disklock) |
| DMF | Delusion Digital Music File - Music format |
| DMG | Mac OS X disk image |
| DMG | Macintosh OS X Disk Copy Disk Image File |
| DMO | Demo (Derive) |
| DMP | Dump File |
| DMS | Compressed Amiga file archive (DiskMasher) |
| DMS | DiskMasher Compressed Amiga file archive |
| DOC | Text DOCument |