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Excel: Delete duplicate values - here's how

Using Excel to perform data analysis, it may be necessary to remove duplicate values from tables or specific ranges. Learn how to check your data in Excel for the presence of duplicate values and how to properly delete duplicates in this article.

Search for duplicate values in Excel

Before you try to delete all duplicate values from your Excel spreadsheet, it is important to check whether there are any duplicate values in it at all. To do this, simply select all the cells you want to check for duplicate values and switch to the "Start" tab. Then navigate to "Conditional formatting", "Rules for highlighting cells" and select "Duplicate values" from the drop-down menu. In the window that opens, now specify a color for the cells with duplicate values and confirm with "OK".

How to delete all duplicate values from Excel

If you have found many duplicates when checking for duplicate values, Excel offers you its own function to remove them from a spreadsheet.
  1. Um alle Duplikate zu entfernen, markieren Sie zunächst bitte die Zellen, aus denen Sie die doppelten Werte entfernen möchten.
  2. Gehen Sie im Tab „Daten“ anschließend zum Bereich „Datentools“ und wählen Sie die Option „Duplikate entfernen“ aus.
  3. Setzen Sie im sich öffnenden Fenster einen Haken bei allen Spalten, aus denen doppelte Werte gelöscht werden sollen und klicken Sie auf „OK“.

By McFadden

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