If your spreadsheet has a lot of unwanted duplicate values, you're not stuck with them. You can remove them. We'll show you how to remove duplicates in Excel.

If your source data is in Excel and has duplicates, run Power Query to remove those duplicates before running a Word mail merge.

How to Remove Duplicate iCloud Contacts on PC and Mac If you don't have access to your Mac you can remotely delete duplicate entries in your Contacts list in the following way.