Repair, decompress, restore data in corrupted rar archives, errors in 3 ways - 99% success
instructions on how to fix corrupted .rar archives: repair rar archives with the built-in tool in winrar; by the option keep broken files or by recovery toolbox for rar softwareInstructions to fix the corrupted zip file with Winrar
there are many cases where you have to download a corrupted compressed file that your internal data is desperately needed while you do not know how to fix the compression problem.