| Abbreviation | Definition |
|---|---|
| D63 | Commodore 64 emulator disk file |
| DAC | Sound (TI/MIT DAC format) (byte reversed ADC file) |
| DAT | ASCII or binary DATa file |
| DAT | WordPerfect Merge data file |
| DB | Database (dbVista - Paradox - Smartware - XTreeGold) |
| DB | dBASE IV Configuration file |
| DB$ | Temporary file (dBASE - Modula2) |
| DB2 | dBASE II Database file |
| DB3 | dBASE III Database file |
| DBA | Database (Turbo Prolog - DataEase) |
| DBD | Business Insight Business Data file |
| DBD | Debug info (Clarion Modula-2) |
| DBF | Database file (dBASE III/IV - FoxPro - dBFast - DataBoss) |
| DBG | Debugger script (DOS debug - Watcom debuger) |
| DBG | Microsoft C/C++ Symbolic DeBuGging information file |
| DBK | Database backup (dBASE IV) |
| DBM | DataBoss Menu template |
| DBM | DataEase Datafile |
| DBO | dBASE IV Compiled program Object code |
| DBS | Datafile (Managing Your Money - ProDas - SQL Windows) |