Open the Excel document needing a signature if it's not open already. Then open the "Sign" dialog box by either double-clicking the signature line or by right-clicking it and selecting "Sign." Add ...

To remove the same, right-click the signature line > Remove Signature. Position your cursor at a location where you want to create a signature line in an Excel file.

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.