Using the Page Setup Dialog Box
If your spreadsheet is wider than it is tall, change the page orientation or paper size.
The default paper size is 8.5x11 inches, or portrait. Changing to landscape orientation prints the longer side of the paper at the top (11x8.5 inches), allowing room for extra columns.
You can shrink spreadsheet data so it fits on a specified number of pages when you print. Click the Page tab, click the Fit to: option button, and enter the desired number of pages wide and pages tall.
Print quality is measured in dpi, or dots per inch. High dpi gives you a higher resolution and a better print quality. However, it takes longer to print.