Adding a new comment in Excel is a quick and easy way to leave a note for yourself or others about the contents of a cell. To add a new comment, simply select the cell you want to add the comment to and press the shortcut keys Ctrl+Shift+O. This will open the Insert Comment dialog box where you can enter your comment. Once you're done, press the Enter key or click the Save button to save your comment.
If you want to edit an existing comment, simply double-click on the cell containing the comment and make your changes. To delete a comment, select the cell containing the comment and press the shortcut keys Ctrl+Shift+O again. This will open the Delete Comment dialog box. Simply click the Delete button to delete the comment.
Comments are a great way to add additional information to your spreadsheet without cluttering up the cells themselves. So next time you need to leave a note for yourself or others, remember to use the Ctrl+Shift+O shortcut to quickly add a new comment in Excel.