The CDR file extension is associated with Corel Draw creative software application, a vector graphics designer developed by Corel Corporation. CDR file contains vector image.
The CDR file extension is used for RAW audio format. CDR file is similar to a .AIF or .WAV file, but does not contain the same header information.
The CDR file extension is used by a Macintosh computer using the built-in Disk Utility program. CDR file contains multiple folders and files in a single disc image file that can be burned to a CD. It is similar to an .ISO file created on a Windows computer.