You can add a watermark to an Excel workbook using your own picture. It can be a stamp, your logo image, or any image that you want to use to watermark an Excel file. Let’s check out the steps for ...

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.

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If you want to add a header or footer to all sheets, select every sheet by right-clicking one of the sheet tabs at the bottom of the Excel screen and clicking "Select All Sheets" in the pop-up menu.