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Excel Guide

How to Eliminate Duplicates in Excel: A Step-by-Step Guide

If you have a large dataset in Excel and need to remove duplicate entries, Excel provides a built-in feature to make this process easy. Follow the step-by-step guide below to eliminate duplicates from your data.

Step 1: Select Your Data

  • Click and drag your mouse over the cells you want to check for duplicates, or click the top-left cell of your data set, hold the "Shift" key, and click the bottom-right cell. Your data should now be highlighted.

Step 2: Find the Duplicates

  • Go to the "Data" tab on the Excel ribbon and click the "Remove Duplicates" button. This opens the "Remove Duplicates" dialog box, displaying all columns in your data set.
  • By default, Excel checks all columns for duplicates. Uncheck columns you don't want to include.
  • Click "OK." Excel analyzes your data, shows how many duplicates it found, and provides the option to delete them. Click "Delete" to remove duplicates or "Cancel" to reconsider.

Step 3: Review Your Data

  • After deleting duplicates, review your data to ensure it appears as intended. If Excel removed values you want to keep, use "Undo Remove Duplicates" from the "Edit" tab.
  • Consider using "Conditional Formatting" to highlight cells with specific values, making it easier to spot retained values.

Step 4: Save Your Data

  • Save your changes by going to the "File" tab, clicking "Save As," and choosing the save location and format (e.g., .xlsx or .csv).

By following these steps, you can efficiently remove duplicates from your Excel spreadsheets and maintain clean and organized data.