You don't have to add a header to every Excel worksheet individually when you can group them first.

How to Add a Footer to All Sheets in Excel. Adding a footer to all of your sheets in an Excel workbook is a good way to ensure continuity between each sheet, especially if you are printing them out.

If you want to add a header and footer in Excel spreadsheet, then this article will help you to do that. Microsoft Excel allows users to insert a header and footer for each page manually.