Have you ever thought of the humble SUM function as a secret weapon for advanced analytics? Most Excel users see it as a basic tool for adding numbers, but what if I told you it could do so much more?

Power users love to talk about how powerful and awesome Excel is, what with its Pivot Tables, nested formulas, and Boolean logic. But many of us barely know how to find the Autosum feature, let alone ...

Move beyond the basics of sums and averages. These tips open up all kinds of opportunities for working with spreadsheet data. Editor’s Note: This article was originally published in Sept. 2012 and the ...