The #NUM error occurs in your Excel spreadsheet when a function or formula contains invalid numeric values. Remove #NUM errors this way!

This tutorial shows you how to fix and remove #DIV/0! error in Microsoft Excel by using the IFERROR or ISERROR function.

This article looks at how to use Excel’s auditing tools to audit formulas and ensure the accuracy of data.

Install the Remove Duplicates add-on from the Google Workspace Marketplace. In your sheet, click Extensions, then Remove Duplicates, and choose: Find Duplicates or Uniques.

If you need to average a list of values in Microsoft Excel that contain duplicates without including the duplicates, don't fret over a complex expression when you can easily remove those duplicates.