Read a tree map chart is something very easy. Each file is representing by a rectangle. The sizeeof each rectangle is linked to the size of each file.
The Treemap chart is a built-in chart type in Excel 2016+. A treemap chart displays hierarchical data in rectangles proportionally sized according to the amount. Jun 7, 2018 - Treemaps are increasingly being included in most data visualization tools (including the latest Excel 2016 version, grouped under “Hierarchy.
So, when you see a large rectangle, you know that this file is a very large file in your computer. More, in our example we have using hierarchy data. Each color represents the contained of a folder.
So, the organisation of the rectangle is:. Each color area represents the first folder level of the hierarchy. The name of the folder is visible on the upper left corner of the area. The organisation of the different hierarchy area is function of the size.
The biggest is always on the upper left position and then it goes down.