It doesn't only open rar files, it can also handle non RAR archives (7-Zip, ACE, ARJ, BZ2, CAB, GZ, ISO, JAR, LZH, TAR, UUE, Z, GZip) management, solid archiving which can raise compression ratio by 10% - 50% over more common methods, particularly when packing a large number of small, similar files. Winrar features wizards for beginners and command line interface for advanced users.
You can now handle archives directly from Windows Explorer due to the shell integration including drag-and-drop facility and cascaded context menus. It supports RAR and ZIP 2.0 archives, special algorithms optimized for text, audio, graphics, 32-bit and 64-bit Intel executables compression.
Winrar archiver is a powerful tool which allows you to create, manage, and control archive files.