File Extension GFM File Format Computer Graphics Meta - file GFM stands for Computer Graphics Meta - 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 SQL reporting not ethical What is the difference between NVIDIA Graphics and Integrated Graphics?