How to Format Excel Margins

1. Click the 'Page Layout' button on the menu ribbon at the top of the screen.
2. Click the 'Margins' button.
3. Click 'Custom Margins' at the bottom of the menu.
4. Click in each text box, and enter the amount you want the margins to be. Do the same for the header and footer.
5. Check the two 'Center on Page' boxes to center the image horizontally and vertically, then click 'OK' to finalize the formatting.