This solution to repair a rar archive may prove your final resort before despair, or before trying some commercial utility, if you need to try all means possible.

If IZarc, WinRAR and similar tools failed to repair your archive using their special fixing methods (under the “Repair” command of their menu), try this way:

Convert your archive to a self-executable

If your RAR archiver manages to make this conversion, most probably your newly created .exe file will be able to extract without problems the compressed files previously included in the rar archive.