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

How to Insert a Logo in Excel. You can spruce up your plain and boring Excel spreadsheet by inserting a logo into the document. The logo can be aligned to fit the dimensions of any cell on the sheet.

Insert Line Break in Excel To move to a new line in an Excel cell, simply type text in the cell as normal and then press enter while holding down the alt key.