<http://schema.org/description>
"Excel 2016&amp;#039;s new Treemap chart offers an interesting way to visualize a hierarchy of data. With it, you can compare data for different categories at a glance, such as revenue for a bookstore by book g..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.laptopmag.com/articles/make-treemap-excel>