Mastering the Excel Duplicate Manager: Clean Your Data Fast

To manage duplicate data in Microsoft Excel, you can use the built-in Conditional Formatting feature to find and review errors, followed by the Remove Duplicates tool to permanently delete them. Find Errors by Highlighting Duplicates

Before deleting information, it is best practice to visually inspect your data to ensure you do not destroy unique records by mistake.

Select the cells: Click and drag over the range of cells or columns you want to evaluate.

Open Conditional Formatting: Navigate to the Home tab on the top ribbon.

Apply the rule: Click Conditional Formatting > Highlight Cells Rules > Duplicate Values.

Choose a style: Select your preferred color formatting from the dropdown dialog box and click OK. All repeated entries will immediately light up. Remove Errors Automatically

Excel can instantly clean your spreadsheet by stripping out redundant rows. Note: This action permanently deletes data, so you should copy your original data to a backup sheet first.

Select your data range: Click inside your data table or highlight the specific columns.

Open the tool: Go to the Data tab on the ribbon and click the Remove Duplicates icon inside the Data Tools group. Configure columns: Check “My data has headers” if your columns have titles.

Select the specific columns you want Excel to check. Checking multiple columns means Excel will only delete a row if the data matches across all selected columns.

Execute: Click OK. A summary box will pop up displaying exactly how many duplicate values were deleted and how many unique values remain.

Watch this step-by-step walkthrough to see exactly where these buttons are located on your ribbon: How To Find & Remove Duplicates In Excel Calon Heindel YouTube · Mar 21, 2026 Pro-Tip: The Formula Alternative