Changes [Oct 01, 2018]Switches
Assuming that you have adjusted the width of the columns and set the page orientation to landsacpe
In the Page Layout ribbon and Orientation Button.
The next step is letting the printer scale the page for you
Select print fromt he file menu the use the scaling option at the bottom.
Fit all Columns to one page work excellent if the page is just a column or two too wide.
If neither of these is enough the more drastic measures are required.
You can highlight selected columns by clicking and dragging on the column letters and right clicking in the selected area and choosing Hide
This will narrow the sheet by eliminating un important data.