File Extension VMXA File Format VMware ACE master file VMXA stands for VMware ACE master 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 Prepare for these system administrator interview questions Adding permissions On a virtual machine, can you download/install files, programs, and applications from the Internet?