Whether you’re creating an Excel workbook for yourself or collaborating on a spreadsheet with others, comments are useful for many reasons. You should master the ways to manage them when you begin your Excel training. Consider these four uses: Set reminders for yourself of tasks you need to do on the worksheet. Add notes for yourself or others. Explain a formula in a cell. Clarify how to use certain parts of the worksheet. Today we’re going to cover some of the basics for working with comments in Excel. Add a Comment to a Cell To add a comment to a cell, click the cell to which you want to attach the comment.