File Extension SSX File Format ScreenShare data file SSX stands for ScreenShare data 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 API or procedure to print layout of spool file in app program How do I convert my data into R file format What is the best software for my personal home business?