| 161. | .dvp | Device parameter file (AutoCAD) ◊ Program information file (DESQview) |
| 162. | .dw2 | Drawing (DesignCAD for windows) |
| 163. | .dwb | Workbench (Coryphaeus Software Designer) |
| 164. | .dwc | Compressed file archive (DWC) |
| 165. | .dwd | Sound (DiamondWare Digitized audio) |
| 166. | .dwf | Vector graphics (Drawing Web Format) (CAD programs) |
| 167. | .dwg | Vector graphics (AutoCAD - Drafix) (many CAD programs) |
| 168. | .dwp | Document file (DeScribe) |
| 169. | .dws | Workspace file (Dyadic) |
| 170. | .dwt | Template file, or prototype (AutoCAD) |