These signing certificates are issued by a certification authority and can ... Excel. Position your cursor at a location where you want to create a signature line in an Excel file. Go to the ...

Microsoft's Office programs have powerful options for creating and editing documents as well as protecting those documents. You can add passwords, configure ...

you can still add a digital signature to your Word or Excel file. MS Word and Excel have an invisible signature feature that can be used to sign a document to assure the authenticity and integrity ...