Did you know that it’s possible to embed an image besides plain text as a comment in a Microsoft Excel cell? Here’s how:

1. Right click on the cell and select Insert Comment
2. Then right click anywhere on the bounding box of the comment and select Format Comment…
3. Go to Colors and Lines tab
4. From the Color dropdown under Fill section, select Fill Effects…
5. Go to Picture tab
6. Click Select Picture… button, browse to and select the picture that you want to insert in the comment. You might want to tick Lock picture aspect ratio before clicking on OK. This (theoretically) ensures that when you resize the comment bounding box, the picture gets sized proprotionately. However, we noticed that this option really didn’t have its intended effect and whether or not it was checked, the end size of the image when the comment box is resized is always the same
7. Press OK once more

There you have it. Play the video below to see this in action.