Excel 2007: Automatically Remove Duplicates

Posted January 15, 2007 by Rob Rogers in Microsoft Excel

Removing duplicates from a spreadsheet can be a timely task, fortunately Excel can do this for you. Here’s how…


1. Select the range of data in your spreadsheet.

2. Go to the Ribbon and select the Data tab.

3. In the Data Tools section, click Remove Duplicates.

4. In the Remove Duplicates dialog box, check the column(s) you want searched for duplicates. You should check all columns that need to be a match to be considered a duplicate to prevent the accidental removal of data you wish to keep.

5. Click OK.

A message will tell you how many duplicate values were found and removed and how many unique values remain in your data. If the result is not what you desired, hit Ctrl+Z to undo the removal of the duplicates and try again.

 

About Rob Rogers

Once a prolific author here on Tech-Recipes, Rob has moved on to greener pastures.
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  • Succinct and thorough guide. Tips Hat.

  • Vamz

    Is there a way to highlight the duplicates before removing them? I guess that is very useful because you do not want to delete them directly as it is risky

    • HDF

      Yes, you can conditionally format the column so that the duplicates appear in another color.

      Steps to follow:
      1. Select column in table that contains the values you want to check for duplicates
      2. On Ribbon, select HOME tab
      3. Select Conditional Formatting/Highlight Cell Rules/Duplicate Values

      • Anonymous

        Wow. Nice tip. I love it.

        Thanks for helping our users.

  • Franco Danna

    can you remove both duplicates

  • Maria Singh

    This just made my life so much easier…. Thanks