| dca | DCA Archive |
| dcf | Safetica Free Encrypted Archive |
| ddap | DiskDoubler Compressed Data |
| ddz | Adaptec Compressed Driver Disk Image |
| deb | Debian Package |
| decrypt | Decrypted Microsoft ESD File |
| deskthemepack | Microsoft Windows 8 Desktop Theme Pack |
| devpak | Dev-C++ Developer Package |
| dfl | DEFLATE Compressed Data |
| dgc | DGCA File Archive |
| dicombz2 | BZip2 Compressed DICOM Image |
| dicomzip | Zipped DICOM Image |
| djz | DJUCED Sample Package |
| dkb | PowerQuest DataKeeper Backup |
| dm | DRM Delivery Message |
| dna | CA Backup and Migration Backup |
| dockzip | ObjectDock Docklet Archive |
| doz | Zardoz Archive |
| dp | mToolkit Deployment Package |
| dpy | Active Expert Deployment Package |
| drm | DRM Delivery Message |
| dur | DURILCA Compressed Archive |
| dwfb | Dragon UnPACKer Archive |
| dxpack | DesktopX Object Package |
| dxz | DosBox EX Ultimate Package |
| dz | Dzip Archive |
| eab | ProSystem fx Engagement Binder Archive |
| eappx | Microsoft Windows Encrypted App Package |
| ebk | Kryptel Backup File |
| ebu | Ulead EasyBackup Archive |
| ecar | EkStep Content Archive |
| ecbk | LG PC Suite Backup Archive |
| ecs | Sony Ericsson P900 Phone Backup |
| edc | Kryptel Encrypted Container |
| edz | EON Studio Distribution Archive |