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Excel how-to guide

How to unique deduplicate list in Excel

Create a de-duplicated list of product names, customers, or categories from a raw data column to use as a dropdown source or summary label.

beginnerArray FormulasUNIQUE reference

Step-by-step instructions

How to unique deduplicate list3 steps

1

Click on the cell where you want the unique list to begin — UNIQUE will spill downward automatically.

2

Reference the range containing the values you want to de-duplicate.

3

Leave the optional second and third arguments blank for the most common use case of distinct rows in a single column.

Example data

Worked example

Category
Electronics
Clothing
Electronics
Books
Clothing
Books

Common mistakes

Errors to watch out for

UNIQUE is not available

UNIQUE requires Excel 365 or Excel 2021. It is not available in Excel 2019 or earlier. For older versions, use Remove Duplicates from the Data menu or an array formula workaround.

SPILL error

A #SPILL error means cells below the formula are not empty. Clear the range where results need to spill and the formula will resolve automatically.

FAQ

Frequently asked questions

How do I sort the unique list alphabetically?

Wrap in SORT — =SORT(UNIQUE(A2:A100)) — to return the distinct values in ascending order.

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