File Extension UDI File Format Corel Graphics draw scripts textures bitmap file UDI stands for Corel Graphics draw scripts textures bitmap file. This was last updated in March 2012 By Margaret Rouse Browse File Extensions Alphabetically: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # Ask a Question. Find an Answer. Ask your peers a question about this file extension. Ask a Question How to open a CDR file Unable to open Corel Draw image How to CDR repair corrupted image?