How do you add a comment to a cell in Excel?

To add a comment to a cell in Excel, right-clicking the cell and selecting "Insert Comment" is the proper method. This action opens a comment box where you can type your message. Comments are useful for providing additional information or context about the data contained within the cell, and they can be viewed when the cell is selected.

Other methods may involve editing the content of the cell itself rather than adding a separate note. For instance, double-clicking the cell typically allows you to edit the text directly. While the Review tab does contain tools related to comments, it is typically used for managing comments rather than directly inserting them. Pressing F2 enables you to edit the cell's contents rather than adding a comment. Therefore, choosing the option to right-click and insert a comment directly is the most accurate and effective way to add comments in Excel.