Open Microsoft Excel. Click the "File" tab. Click "Open." Navigate to the chart to add notes onto and double-click the name of the file. Right-click the chart.

In Microsoft Excel, you can add Notes to your cells. When the cell has a note, a red indicator will appear at the corner of your cell. If you hover the cursor over the cell, the note will appear.

You can easily make a pie chart in Excel to make data easier to understand. The process only takes 5 steps. ... In the pop-up window, select the chart you wish to use and click on it. 5.