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.

Q: I read your colleague David Einstein's description of how to make row and column headings repeat on each page of an Excel spreadsheet in Windows. The Mac version appears to be just a bit ...

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.