How to insert & use Functions in Excel Functions help you perform a variety of mathematical operations, lookup values, calculate date and time, and a lot more.

You use these functions when you want to find values based on the value in a corresponding cell. Thanks to the newish dynamic array function XLOOKUP (), you now have more power and less confusion.

2. Click the Insert Function button Use the Insert Function button under the Formulas tab to select a function from Excel’s menu list: ...