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.

Microsoft Excel is perhaps the most powerful spreadsheet application you can buy. But it also has some simple functions, like finding duplicates in data.

You can remove duplicates in Excel in a few steps. Duplicates can create problems when you're dealing with data.

How to Remove Duplicates That Are Case Sensitive in Excel 2007. By definition, Microsoft Excel 2007 considers a duplicate to be a row of data that matches another row in your worksheet exactly.