When writing formulas in Excel, SUM and VLOOKUP are staples for beginners. But since Excel has over 400 functions, it's helpful to know more of the extremely useful ones, especially when looking to ...

I use these functions to summarize data with formulas instead of dialog boxes. That makes it easier to see exactly what's ...

Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories); ...