UnArchiver.

This is a very easy decompression and compression application that allows you to decompress dozens of archive formats. Such as: Rar, Zip, 7z, Tar, Xz, Iso, Lha, bz2, Lzh, cab, cpio, jar, exe, pkg, dms, tbz, swf, Gzip, Bzip2…

It can also compress and encrypt any file .