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.

To add more data to the Y axis in a line chart, add additional numbers in cells below your existing data. Right-click the chart, choose "Select Data" and highlight all entries in the single column.

Displaying values on a map chart is more meaningful than handing someone a sheet of data. Thanks to Microsoft Excel's Geography data type, creating a map chart is easier than you might think.

Image: PixieMe/Adobe Stock. There are lots of ways to highlight a specific element in a Microsoft Excel chart. You might add data labels or use pictures instead of a plain column in a column chart.