CDD file extension - ClarisDraw document file
What is cdd file? How to open cdd files?
File type specification:
The cdd file extension is associated with the ClarisDraw WYSIWYG drawing tool that was the final incarnation of MacDraw, one of the early Macintosh applications. The .cdd file stores document created with ClarisDraw
Development of Apple's drawing program ended in 1997 when Claris was dismembered.