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?

Not everyone is an Excel spreadsheet expert and you may not always know how to write the formulas you need for a given data set. If you're having trouble figuring out the right formula for your data ...

You’ve probably used SUM a thousand times. Everyone has. SUM is fine for school assignments and tiny tables, but in the real world, it’s a blunt instrument. If you want totals you can actually trust, ...