How to find duplicates and uniques in Excel

Duplicate Remover for Excel is a 5-step way to quickly remove, highlight, select, or move repeated or unique cells in Excel lists and duplicate rows in tables. Here you will find the instructions on how to use the tool.

Before you start

We care about your books and always suggest creating backup copies of your files by selecting the corresponding option in the add-in.

How to use Duplicate Remover

Start the wizard

Once you open your Excel workbook with the table you need to check for duplicate or unique values, click the Duplicate Remover icon in the Dedupe group on the Ablebits Data tab to start the add-in:
Open Duplicate Remover for Excel.

Tip. You can pre-select the type of data to look for and jump right to step 3 by clicking on the down arrow below the add-in's icon:
Choose to find duplicates or uniques right from the start.

Step 1. Select a table

First, you choose the range to dedupe.
Select Excel list to dedupe.
Click any cell in your table and get the whole dataset highlighted automatically. You can change the range manually by editing it in the Select your table field, clicking the Select range icon, or simply by selecting the needed cells in Excel.
Pick the range to find duplicate cells.

Note. We strongly recommend checking the option to Create a backup copy of the worksheet as Excel doesn't let you cancel changes made by add-ins.

When the needed range is picked, click Next.

Step 2. Choose the type of data to look for

Unless you use the drop-down list on the toolbar, this is the step where you choose the type of data to find:
Find and remove duplicates or uniques.

Tip. If you select the wrong option, you can always return and choose another by clicking the Back button.

Press Next to continue.

Step 3. Pick columns to check for duplicates and uniques

This step displays a list of columns with their headers as they are in your worksheet:
Pick columns with duplicates to dedupe Excel list.

  1. Unless your range is formatted as a table in Excel, you can let the add-in know if the first row contains labels with the My table has headers option at the top.
  2. If you have empty cells in your Excel table, tick the Skip empty cells option to exclude them from the search results.
  3. If your range has no labels, look at the 1st row content area to make sure you choose the right columns.
  4. All columns are selected by default. If you have a lot of columns in your table, take advantage of the top checkbox next to Columns or use the Select All and Unselect All buttons to quickly clear the selection and specify only the records you want to check.
Note. If you select more than one column, the add-in will look for duplicated rows. In other words, only those records that have the same values in both columns will be considered duplicates. If your purpose is to compare column A with column B, please use the Compare Tables tool instead with column A as your first table and column B as your second table.
Tip. If you have a long list of columns, you can make the wizard window bigger by dragging the bottom-right corner down and to the right.

When the columns are selected, click Next.

Step 4. Choose what to do with the found entries

On the final step, you are to select the action that will be applied to the found Excel duplicates and uniques:
Identify duplicates and uniques in Excel, remove or select them.

  • You can have the rows with duplicate values deleted.
  • Highlight results with color to quickly see all the duplicated rows. You can pick the color from the drop-down list next to the option.
    This is how you can Highlight duplicate rows.
  • Select the found values to be able to work with them further.
    Here is how you can quickly Select duplicate and unique values in Excel.
  • Mark the found dupes or uniques in the Status column in your Excel list.
    What is the status column? See it in the Identify duplicate rows in a special column video.
  • Copy or move the results to another location (a new workbook, new or existing worksheet).

Click Finish.
Highlight duplicates in Excel.


george bester says:
July 8, 2018 at 3:55 pm

empty cells are not skipped even after clear ll


Hi George,
Thank you for using our product and for your message. Please contact our support team at and describe the problem in detail. It would be perfect if you could attach your book and indicate the version of Ultimate Suite you are using (to find it, go to the Ablebits Data tab, find the Help icon on the left and click the About… option in the drop-down menu).

Jennifer Phelps says:
January 24, 2019 at 9:31 pm

We upgraded to Office 365 yesterday and now I'm unable to compare 2 tables as before.
It also tells me i am on a "trial"

Please advise asap

Thank you,


Hi, Jennifer,
I am sorry you are facing such problems with our product. For us to be able to assist you better, please contact our support team at In your message, please specify your current license key. If you get any error message, please attach its screenshot. We will help you asap.
Thank you.


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