.djvu - DjVu file bitmap image
.cr2 - Canon digital camera RAW image format version 2.0
.dt2 - Microsoft Live Messenger file
.emz - Microsoft Windows enhanced compressed metafile
.nef - Nikon Digital SLR camera RAW image file
.cdr - Corel Draw bitmap (preview) image format
.psd - Adobe Photoshop graphics
.sid - LizardTech MrSID image file
file extension NIFF - Bitmap image (Navy Interchange File Format)
File extension NIFF description:
Probably old file extension or not supported format.
