What is a Tarball?

From WowAce Wiki

A tarball is quite similar to a zip file in windows. There are a number of programs you can use to open tarballs, here are the most common:

Windows

• WinZip
• WinRAR
• 7-zip

Mac

Info from Mikma on the Ace forums:

Here's some info how to extract them on Macintosh:
http://www.versiontracker.com/dyn/moreinfo/macosx/182
or open Finder ->Applications -> Utilities -> Terminal: tar zxvf filename.tar.gz

More info

You can find more info on tarballs on Wikipedia