Dont Make More Of These! I Know You Made Atleast 2 Topics Asking This Same Question !!!! Stop Spamming!!!
You cannot convert .abr, but you can add them to a .rar archive. All you need is winrar. Highlight the files you want in your .rar archive, tight click on one of them, and click either "add to archive..." or "add to"example.rar" Simple. Got any problems PM me