With Excel's versatile chart tool, putting together data visualizations is as easy as pie (groan).

Most charts have several design and formatting options, such as a pie chart, which can be 2-D, 3-D or donut-shaped, among other styles.

Subgrouping a pie chart produces the same results but without the hole in the center. To allow the donut chart to be as large as possible, the program suppresses the default heading and moves the ...