Quickly extract unique values including first duplicate from An Excel column
Kutools for Excel
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There may be a formula that can help you to extract unique values including the first duplicate values from a column in Excel, but it may be difficult to remember. With Kutools for Excel installed, you can apply the Extract cells with unique values (include the first duplicate value) feature to handle this job in Excel.
How to use the Extract cells with unique values (include the first duplicate value) feature
Enable the feature by clicking Kutools > Formula Helper > Formula Helper, then in the popping Formulas Helper dialog, choosing Text from the Formula Type drop-down list, and selecting Extract cells with unique values (include the first duplicate) from the list in Choose a formula section.
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To extract unique values including the first duplicate values with the Extract cells with unique values (include the first duplicate value) feature, please do as below steps:
1. Select a cell which you will place the extracted unique values at , and click Kutools > Formula Helper > Formula Helper to enable the Formula Helper dialog.
2. Then in the popping Formulas Helper dialog, select Text from Formula Type drop-down list, and then choose Extract cells with unique values (include first duplicate) from the Choose a formula section.
Or you can directly filter out the feature. Check Filter checkbox, and type "unique" or other keywords into the textbox next to the Filter, then the formulas contains substring “unique” will be listed in the Choose a formula section.
3. Then go to right section of the Formula Helper dialog, click 
button to select a column which you want to extract unique values from.
4. Click Ok, then the first unique value of the list has been extracted by the formula, then drag the autofill handle down to cells until a blank cell appears. So far all unique values including the first duplicates have been extracted.
Tip:
1. If this feature does you a favor, you could click 
to share this feature to your friends.
2. To prevent circular reference, please do not insert the formula in the first row of the worksheet.
Demo: Extract unique values including first duplicate in Excel
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Kutools for Excel
Kutools for Excel offers 300+ advanced features to streamline your work in Excel 2010 – 2024 and Microsoft 365. The feature above is just one of many time-saving tools included.
