You can add a signature to an Excel spreadsheet using electronic signature software or using the Insert feature in Excel. Open an Excel spreadsheet and select Insert > Add a Signature Line.

If the Signature Line option is greyed out in Excel or Word on your desktop, remove editing restrictions or add a signature line manually.

Add a layer of security with a signature line in any Word, Excel and PowerPoint document, or record your own digital signature in a document that includes a signature line.

For even the most new-to-the-program users, compiling a graph in Microsoft Excel is fairly intuitive. Excel offers a one-click option on its "Insert" menu to take data on a spreadsheet and render ...