Hello, today i recovered an old .rar file using Restoration. When i exported the ex. rar file it has no extension. Its just called xxxx. But when I change name to xxxx.rar to open it in winrar it says "this archive is either in unknown format or damaged". It worked perfectly before and it has the same size as it used to, how come it wont open. Ive tried uniextract,winrar and winzip. Please help, thanks in advance!