"Before you print a Microsoft Office Excel worksheet that contains large
amounts of data or charts, you can quickly fine-tune it in the new Page
Layout view to achieve professional-looking results. In this view, you can
change the layout and format of data the way that you can in Normal view.
But you can also use the rulers to measure the width and height of the data,
change the page orientation, add or change page headers and footers, set
margins for printing, and hide or display row and column headers.

Note   Page Layout view is useful to get your data ready for printing. Page
breaks are more easily adjusted in Page Break Preview view. For an exact
preview of how the data will be printed, you can preview the worksheet pages
in Print Preview view. For more information, see the topics Add, delete, or
move page breaks and Preview worksheet pages before printing."

Now ask me what "Help" does :->