CDR, CorelDRAW Image File (.cdr)
The CDR Vector image file format
CDR is a file format which was developed by the Corel Corporation and is used mainly for vector graphic images and drawings. The CDR file format is recognized by the majority of image editing programs. The CDR format is the default format for Corel Draw Applications. Corel hired Michel Bouillon and Pat Beirne to develop a vector based illustration program that could be packaged with their desktop publishing system.
Technical details of CDR files
There isn't any information of the technical specifications of the CDR file format available publicly. However, after the first launch in 1989, Corel has been continually evolving! The latest version of the Corel Draw Application also features basic support for text, and support for color management and spot colors.