While Microsoft Excel's comments and notes tools both let you annotate a cell, they serve different purposes, work in diverse ways, and vary in how they look on a printed Excel worksheet.

You may already know you can add a watermark to a Word document, but you might not know that you can also add a watermark to an Excel sheet. Here's how.

This screenshot guide shows you hwot to create, customize and insert a watermark in Microsoft Excel using two different methods.