Cisdem BetterUnarchiver is the Mac Unarchiver and archiver that lets you batch compress files, preview the contents inside archives and unzip (entirely or partially) archive files on Mac.
For Mac users opening an archived file is normally as simple as double-clicking it. Except when you received files with extensions like RAR, Wim, TAR, etc. Cisdem BetterUnarchiver is a highly versatile Mac unarchiver that can unpack pretty much any archive you throw at it, be it RAR, Zip, 7-zip, ISO, Udf, Wim, TAR, etc.
Aims to be the only unarchiving program you will ever need, Cisdem BetterUnarchiver also lets you preview the files inside archives, such as text, images or music, and unzip only those files you really need. If you have another app installed that can open a file, Archives can also use that app to open contained files.
Screenshots Cisdem BetterUnarchiver for Mac