File Extension WBMP File Format Wireless Bitmap File Format WBMP stands for Wireless Bitmap File Format. 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 Wireless Bitmap (WBMP) Compressing Old Files Connected to the mobile world, but not to the room?