If you need to use the Excel IF function and multiple conditions, consider using the IFS function instead. This allows you to test multiple conditions in order, picking the first that returns true.

This month’s column shows how to use the remarkably versatile AGGREGATE function in Excel.

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 click.