Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions.

If you’d like to learn about XLOOKUP(), read How to use the newish XLOOKUP() dynamic array function in Excel. I’m using Microsoft 365 on a Windows 10 64-bit system.

The MOD function in Microsoft Excel lets you work out whether one number is divisible by another. If it's not, it tells you what's left over. For example, if you divide 3 by 2, the MOD function ...

How to apply a function to all or multiple sheets? Firstly you need to select all sheets. To do this, click on the first tab (sheet) and then go on to the last tab while pressing Shift + Left ...