It could simply be a private compressed folder created by a user (perhaps someone named "Maj") using WinRAR or 7-Zip.
In software and gaming, a file named maj.rar (short for mise à jour , French for "update") is often a compressed archive containing a significant software patch or new version.
Version History * ■■■ Thanks for using Zippr App ■■■ ◎ Fixed crash ◎ Improved performance For any questions, suggestions, or bugs, MAJ Law Solicitors Reviews 237