Page Layout -> Page Setup ->Size Page Setup: Size What size is this spreadsheet? By default, a spreadsheet is Letter: 8.5" x 11".   4. Try This: Review the Page Size Go to Page Layout -> Page Setup. Go to Size. What Do You See? The Sizes also include Legal, 8.5" x 14" which may be helpful if you need to print a very wide spreadsheet with many months.   What Else Do You See? Letter and Legal are standard American page dimensions. A5, A4, B5 etc were designed with Metric page dimensions. The numbers are simple in the Metric system, but they look funny displayed as American dimensions, huh?   Keep going...