| Abbreviation | Definition |
|---|---|
| DW2 | Drawing (DesignCAD for windows) |
| DWB | Coryphaeus Software Designer Workbench |
| DWC | Compressed file archive (DWC) |
| DWD | DiamondWare digitized sound |
| DWF | Vector graphics (CAD programs) |
| DWG | Drawing database (vector) (AutoCAD - Drafix) (CAD programs) |
| DX | Data explorer Document file |
| DX | DEC WPS/DX format Text file |
| DX | THOR database Cross-reference data |
| DXB | Drawing binary exchange format (vector) (AutoCAD) |
| DXF | Vector graphics (Drawing Exchange Format) (AutoCAD) (CAD programs) |
| DXN | Fax (Fujitsu dexNET) |
| DY22 | Sound (Dyaxis format) (sampling rate 22k) |
| DY44 | Dyaxis format sampling rate 44k Sound file |
| DYL | Dynamic link library (EPOC16) |
| DYN | Data (Lotus 1-2-3) |
| EAS | Extended file attributes (OS/2) |
| EBF | Event Builder Format |
| EBJ | Error-checking object file (Geoworks) |
| EBN | Philips Firmware Update File |