| .diva |
Project DIVA Song File |
| .develve |
Develve Data File |
| .defs |
BlueJ Settings File |
| .dru |
EAGLE Design Rules File |
| .db.jou |
Patran Journal File |
| .d3md |
DART Metadata File |
| .dropbox |
Dropbox Shared Folder Tracker |
| .dde |
Lingvo Dictionary Error Log File |
| .dspl |
Modern Warfare 3 Dedicated Server Playlist |
| .dsr |
Modern Warfare 3 Dedicated Server Recipe File |
| .dx |
DEC WPS Plus File |
| .diy |
My Drivers Backup Setup File |
| .dht |
GAUSS Data Set Header File |
| .dnh |
Danmakufu Script |
| .dge |
Enterprise Test Server Declaration Generator File |
| .eml |
E-Mail Message |
| .emf |
Windows Enhanced Metafile |
| .exp |
Melco Embroidery File |
| .erb |
Ruby ERB Script |
| .edi |
Electronic Data Interchange File |
| .err |
Error Log File |
| .ent |
External Entity |
| .ex |
Euphoria Source Code |
| .ecw |
Enhanced Compression Wavelet Image |