When I was asked to review The Unarchiver 2.7, a free decompression utility from Dag Ågren/WAHa, I thought "Who needs this program, when Mac OS X opens most common archive formats?" I quickly found out that thousands of people rely on The Unarchiver to do tasks that lie beyond the scope of built-in Archive Utility.app found in OS X.
First I spoke to a loyal user, Barry Porter, an Apple Consultants Network member from Delray Beach, Florida. He said, "I use it everyday. It's great. I haven't found an archive it can't open. I use it because the built-in program is very limited in what it can create and open. You never need to open the program, it just works in the background u
