Freeware champ Outlook Duplicate Items Remover lives up to its name -- and now supports Outlook 2010 (as well as all previous versions). It's fast, effective, and free!

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.

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.

Over time the contacts list on your iPhone can quickly become cluttered with duplicates: multiple entries for the same people. This might be due to new email addresses, phones numbers, or other ...

Duplicate contacts are a common annoyance. Here's how to delete them on your iPhone using the Contacts app, iCloud, or a Mac computer.

If you wish to count the same or duplicate values in a column only once in Excel or the count of occurances of duplicate values, read this article.