Question: I there a way to have a header appear on each worksheet of a multi worksheet workbook, so that I don’t have to create headers for each worksheet?
Answer: Yes. You can select all worksheets by clicking on the worksheet tab and then hold either the shift key to select a contiguous number of worksheets or ctrl key for noncontiguous worksheets and click those worksheet tabs. While those sheets are selected, use the Insert > Header option (or you can go to the Page Layout tab and click the diagonal arrow in the Page setup grouping and create your header/footer there). Having worksheets selected will place the same header on all sheets. Just remember to click on the active sheet tab before entering data intended for just one sheet. Doing that will “unselect” the other worksheets.