File Extension ZM9 File Format ZSNES Movie ZM9 stands for ZSNES Movie. 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 Attach external hard drive to my television Flash CS3 File changes size when made into a movie What is this code? I am trying to TRUST a forwarded email!