File Extension RPJ File Format Real Pac Batch Job File RPJ stands for Real Pac Batch Job 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 Migrating DNS entries from ZeroShell to PFsense VPN Track Changes to Files and Folders I am writing a batch file that will be run from a DVD to copy some necessary files to a location specified by the user.