Important: In Excel for Microsoft 365 and Excel 2021, Power View is removed on October 12, 2021. As an alternative, you can use the interactive visual experience provided by Power BI Desktop, which you can download for free. You can also easily Import Excel workbooks into Power BI Desktop.
A matrix is a type of visualization that is similar to a table in that it is made up of rows and columns. However, a matrix can be collapsed and expanded by rows and/or columns. If it contains a hierarchy, you can drill down/drill up. It can display totals and subtotals by columns and/or rows. And a matrix can display data without repeating values. For example, visualizing data about Olympic sports, disciplines, and events:
On the left, the table lists the sport and discipline for each and every event.
On the right, the matrix lists each sport and discipline only once.
To create a matrix, you start with a table and convert it to a matrix.
On the Design tab > Switch Visualizations > Table > Matrix.
By default a matrix has totals, and subtotals for the groups, but you can turn them off.
On the Design tab > Options > Totals.
To add column groups, drag a field to the Column Groups box.
Tip: If you don’t see the Column Groups box, make sure Matrix is selected on the Design tab.