.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 CR - Iris CT format bitmap image
File extension CR description:
An Iris printer is a large format color inkjet printer manufactured by the Graphic Communications Group of Eastman Kodak, which is used for digital prepress proofing. Iris printers use a continuous flow ink system to produce continuous-tone output on various media, including paper, canvas, silk, linen and other textiles. Unlike most ink jet printers which fire drops only when needed, the Iris printers' four 1 micrometre glass jets operate continuously under high pressure, vibrated by a piezoelectric crystal to produce drops at a 1 MHz rate. Drops that are not needed to form the image are deflected electrostatically into a waste system. The prints are noted for their accurate color reproduction. Iris printers are also noted for the low cost of their consumables compared to other printing technologies. Prints produced by an Iris printer are commonly called "Iris prints", "Iris proofs", or simply "Irises".