File Extension VMO File Format VinylMaster Pro file VMO stands for VinylMaster Pro 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 Using XTML files in Wordfast Pro 4 How to open a CDR file How do I cut-and-paste from a Word file to a FoxPro memo field?