The Header/Footer options are used when you require the same data printed on the top or bottom of every page in the worksheet.
You can choose from Excel's built-in headers or footers or customise your own.
The Orientation box, in the Page section, allows you to select whether you wish to print down the page (Portrait), or across the page (Landscape).
The Scaling options allow you to shrink or enlarge the data on the printed page.
The Print titles options within the Sheet section are used to repeat column and row titles on every page of the printed worksheet.
The Margins section enables you to centre the worksheet horizontally or vertically and change the blank area left around the outside of the printed page.