I recently acquired Microsoft Office for Mac 2011 (It was free thru work). I wanted to use Excel for my engineering class, but I need the Data Analysis Toolpack. From what I can tell there isn't a "real" one available comparable to PC version. The only one I could find is this: http://www.analystsoft.com/en/products/statplusmacle/ Has anyone used this before? Or is there a better one available?