Convert Multiple AVI Files To MP4 Files Software - Version 7.0 This software offers a solution to users who want to convert one or more AVI files to MP4 files. Do you have a favorite device or software that will only play MP4 formatted files and a whole collection of AVI files that you still want to view. Now you can, quickly and easily by converting those AVI files to MP4 format all at once instead of tediously converting them one at a time.