This add-in can be used in data analysis to visualize the hierarchical data into heat-map. One of most popular usages is to draw security market heat-map to demonstrate securities performance by sector and industry.
This add-in is easy to use that it allows user to use sample template to build his own map by pasting the hierarchical data into the sample data table.
No special set up is needed. Just grouping the data in 4 columns, the 1st column has the items, the 2ndcolumn has the parent level text. The 3rd column has the number for the size of the rectangle. The 4th column has number for the coloring.