There could be times when you might want to insert an image in an Excel spreadsheet. If so, you could follow this step-by-step guide to add or insert images in Microsoft Excel and Excel Online.

To insert an image in a cell in Microsoft Excel, click the Insert tab, select the Illustration button, then select Picture. It's so simple!

Here's how. Image: Fonstra/Shutterstock Adding a watermark to a Word document is an easy and common task, but did you know you can add a watermark to an Excel sheet?