Adding comments in Microsoft Excel
Add comments to a cell
Adding comments in Microsoft Excel is easy.
Click a cell you want to add your comments.
Right-click then choose Insert Comment.
Type your comments in the comment box.
To end your comments, left-click your mouse button in any cell you like but not in the selected cell.
The typing text of your comments do not appear in the cell, but they reside within the cell by flagginf the cell’s upper-right corner with a red triangle.