With the aid of google :)
http://research.microsoft.com/resear...s/default.aspx

Under the section on Data visualization.

Cheers
Andy

curious wrote:
info week claimed there is a free plug-in for excel that would allow you to
graphically analyze data using what's call a "treemap". I searched the MS
site and didn't get any hits. does anyone know where I could find this
plug-in?



--

Andy Pope, Microsoft MVP - Excel
http://www.andypope.info