Two people at my office updated Office 365 yesterday (including me) and immediately after doing to when we opened Excel and created new documents the margins went berserk. The text runs right off of the page when you go to print and it doesn't seem to matter if change the print settings, page size, page margins, orientation, etc. the text still goes off the right side of the page as if Excel doesn't recognize either the margin or page.
Solved by V. Y. in 30 mins