WinRAR is a powerful archive manager (Win32, Linux, Mac).
RAR files can usually compress content by 8 percent to 15 percent more than ZIP files can.
WinRAR is a powerful compression tool with many integrated additional functions
to help you organize your compressed archives. It can backup your data and reduce size
of email attachments, decompress RAR, ZIP and other files downloaded from Internet
and create new archives in RAR and ZIP file format.