| .cdc |
AutoCAD DesignCenter Preview Cache File |
| .cimg |
CImg Image File |
| .cpbitmap |
Apple iOS Wallpaper Image |
| .c4 |
JEDMICS Image File |
| .ce |
ComputerEyes Image |
| .cut |
Dr. Halo Bitmap Image File |
| .dds |
DirectDraw Surface |
| .dib |
Device Independent Bitmap File |
| .dpx |
Digital Picture Exchange File |
| .dcm |
DICOM Image |
| .dt2 |
Windows Live Messenger Emoticon Image File |
| .dic |
Dictionary File |
| .djvu |
DjVu Image |
| .dcx |
Zsoft Multi-Page Paintbrush File |
| .dvl |
Dalim Virtual Library File |
| .dtw |
Desktop Wallpaper |
| .ddt |
Football Manager Keep Player Data File |
| .dc2 |
DesignCAD 2D ASCII Drawing |
| .dm3 |
DigitalMicrograph Image |
| .dmi |
BYOND Dream Maker Icon File |
| .djv |
DjVu Image |
| .dicom |
DICOM Image File |
| .ddb |
Digidesign Database |
| .drz |
Draz Paint File |