If you want to add a header or footer to all sheets, select every sheet by right-clicking one of the sheet tabs at the bottom of the Excel screen and clicking "Select All Sheets" in the pop-up menu.

This screenshot guide shows you hwot to create, customize and insert a watermark in Microsoft Excel using two different methods.

Can Excel show column headers on every screen? Yes, in Excel it’s called Freezing Panes, which can be applied to columns or rows (or both), and it’s super-simple.