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.

Microsoft Office 2007's digital signature feature allows users to finalize documents with a stamp of approval. Digitally signed documents cannot be edited or altered, securing their contents; this is ...