How To Succesfully Unarchive A File With ANY Extension On Mac OSX (The Unarchiver)
Sorry about the quiet audio. My computer's mic is pretty crappy.
I show you how to successfully unarchive an archived file with ANY file extension on Mac OSX. Though I demonstrate a 7-zip file, this also works on .tar.gz and .cpgz files, where you'd normally just get a tar.gz that unarchives into a .cpgz and continuously loops. This also works with pretty much every other file extension. Here is the link to download: http://the-unarchiver.en.softonic.com...
It might be wise to Google it first, as there may be a newer version.