Excel has SumIf and CountIf, but no AverageIf. However, with a little array magic, you can get Excel to average values, conditionally. Simply insert the following form as an array: =AVERAGE (IF ...

Microsoft Excel's new dynamic array functions make complex calculations easier than ever before. Image: PixieMe/Shutterstock Microsoft 365 updates the way Excel handles dynamic functions.

Before LAMBDA was introduced to Excel, you'd need to know how to use VBA or macros to create your own function. However, today, Excel's LAMBDA tool lets you do this using familiar Excel language ...