| .dtd |
Document Type Definition File |
| .dcr |
Shockwave Media File |
| .dpr |
Delphi Project |
| .dex |
Dalvik Executable File |
| .dba |
CryENGINE Animation Database File |
| .dcp |
Delphi Compiled Package |
| .dcproj |
Dashcode Project |
| .dproj |
Delphi Project |
| .dsk |
Disk Image |
| .dsp |
Dynamic Studio Professional Module |
| .def |
M.U.G.E.N. Character Definition File |
| .dcu |
Delphi Compiled Unit |
| .dfm |
Midas ViewPoint Display Form |
| .dpk |
Delphi Package |
| .dpl |
Delphi Package Library |
| .dob |
Visual Basic UserDocument |
| .dox |
Visual Basic Binary UserDocument |
| .df1 |
Omnis Native Datafile |
| .dec |
Declaration File |
| .d |
D Source Code File |
| .dbo |
DarkBASIC Object |
| .dbproj |
Visual Studio Database Project File |
| .dbml |
Visual Studio OR Design File |
| .dws |
Dyalog Workspace File |