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.

Anyone who uses Excel will know that shortcuts and functions to make repetitive actions easier are very much welcomed. In this article we will show you how to apply the same formula to multiple sheets ...

Fortunately, Excel 2007 enables you to select all pages and copy formatting to all of them. This method allows you save precious time and ensure formatting is consistent across all sheets.

You can sum cells across multiple sheets in Excel. This article presents steps for Adding single-cell values or Adding values in the range of cells.