How to Make a Pie Chart in Excel & Add Rich Data Labels to The Chart! 8.9.2022 · A pie chart is used to showcase parts of a whole or the proportions of a whole. There should be about five pieces in a pie chart if there are too many slices, then it’s best to use another type of chart or a pie of pie chart in order to showcase the data better. In this article, we are going to see a detailed description of how to make a pie chart in excel.