Save this for the spreadsheet jocks in your office—we'd bet even the experts don't know all of these formula tips.

Mac keyboard shortcuts often follow the same principle as the Windows keyboard shortcuts, though the Alt key on Windows keyboards is often replaced by the Options key on a Mac, and the Windows Ctrl ...

Sheldon Cooper was a physics genius on 'The Big Bang Theory.' So why didn't fans ever get to see him work out formulas on the show?