How to remove duplicates in Excel (duplicate rows, values and partial matches)

The tutorial explains how to remove duplicates in Excel 2010, Excel 2013, and Excel 2016. You will learn a few different techniques to find and delete duplicate values with or without first occurrences, remove duplicate rows, detect absolute duplicates and partial matches.

Although Microsoft Excel is primarily a calculation tool, its sheets are often used as databases to keep track of inventories, make sales reports or maintain mailing lists.

A common problem that occurs as a database grows in size is that many duplicate rows appear in it. And even if your huge database contains just a handful of identical records, those few duplicates can cause a whole lot of problems, for example mailing multiple copies of the same document to the same person, or calculating the same numbers more than once in a summary report. So, before using a database, it makes sense to check it for duplicate entries, to make sure you are not wasting time on repeating your efforts.

In a couple of our recent articles, we discussed various ways to identify duplicates in Excel and highlight duplicate cells or rows. However, there may be situations when you may want to ultimately eliminate duplicates in your Excel sheets. And that's exactly the subject of this tutorial.

• How to remove duplicates in Excel using the inbuilt tool
• Get rid of duplicates by coping unique values
• How to delete duplicate rows in Excel by filtering
• Advanced tool to find & remove duplicates in Excel

Remove Duplicates tool - delete duplicate rows from a sheet

If you are using the recent version of Microsoft Excel 2007, Excel 2010, Excel 2013 or Excel 2016, you have a bit of advantage because these versions contain a built-in feature for finding and removing duplicates called, not surprisingly, Remove Duplicates.

This tool allows you to find and remove absolute duplicates (cells or entire rows) as well as partially matching records (rows that have identical values in a specified column or columns). To perform this, follow the below steps.

1. To begin with, select the range in which you want to ddelete dupes. To select the entire table, press Ctrl + A.
2. With the range selected, go to the Data tab > Data Tools group, and click the Remove Duplicates button.
   
3. The Remove Duplicates dialog box will open, you select the columns to check for duplicates, and click OK.
   • To delete duplicate rows that have completely equal values in all columns, leave the check marks next to all columns, like in the screenshot below.
   • To remove partial duplicates based on one or more key columns, select only those relevant columns. If your table has many columns, the fastest way is to click the Unselect All button, and then select the columns you want to check for dupes.
   • If your table does not have headers, clear the My data has headers box in the upper-right corner of the dialog window, which is usually selected by default.
     

Done! All duplicate rows in the selected range are deleted, and a message is displayed indicating how many duplicate entries have been removed and how many unique values remain.

Get rid of duplicates by copying unique records to another location

Another way to get rid of duplicates in Excel is separating unique values, and copying them to another sheet or a different workbook. The detailed steps follow below.

1. Select the range or the entire table that you want to dedupe.
2. Navigate to the Data tab > Sort & Filter group, and click the Advanced button.
   
3. In the Advanced Filter dialog window, do the following:
   • Select the Copy to another location radio button.
   • Verify whether the correct range appears in the List Range This should be the range you've selected on step 1.
   • In the Copy to box, enter the range where you wish to copy the unique values (it's actually sufficient to select the upper-left cell of the destination range).
   • Select the Unique records only

   

4. Finally, click OK, and the unique values will be copied to a new location:
   

How to remove duplicate rows in Excel by filtering

One more way to remove duplicate values in Excel is to identify them using a formula, filter out, and then delete duplicate rows.

An advantage of this approach is versatility - it lets you find and delete duplicate values in one column or duplicates rows based on values in several columns, with or without first instances. A drawback is that you will need to remember a handful of duplicate formulas.

1. Depending on your task, use one of the following formulas to detect duplicates.Formulas to find duplicate values in 1 column
   • Duplicates except 1^st occurrences: =IF(COUNTIF($A$2:$A2, $A2)>1, "Duplicate", "")
   • Duplicates with 1^st occurrences: =IF(COUNTIF($A$2:$A$10, $A2)>1, "Duplicate", "Unique")

   Where A2 is the first and A10 is the last cell of the range to be searched for duplicates.

   Formulas to find duplicate rows

   • Duplicate rows except 1^st occurrences: =IF(COUNTIFS($A$2:$A2, $A2, $B$2:$B2, $B2, $C$2:$C2, $C2)>1, "Duplicate row", "Unique")
   • Duplicate rows with 1^st occurrences: =IF(COUNTIFS($A$2:$A$10, $A2, $B$2:$B$10, $B2, $C$2:$C$10, $C2)>1, "Duplicate row", "Unique")

   Where A, B, and C are the columns to be checked for duplicate values.

   For example, this is how you can identify duplicate rows except for 1^st instances:
   

   For more information about using duplicate formulas, check out How to identify duplicates in Excel.

2. Select any cell within your table, and apply Excel's auto filter either by clicking the Filter button on the Data tab, or Sort & Filter > Filter on the Home tab.
3. Filter out duplicate rows by clicking the arrow in the header of the "Duplicate" column, and then check the "Duplicate row" box.If someone needs more detailed guidelines, please see How to filter duplicates in Excel.
4. And finally, delete duplicate rows. To do this, select the filtered rows by dragging the mouse across the row numbers, right click them, and select Delete Row from the context menu. The reason you need to do this instead of simply pressing the Delete button on the keyboard is that it will delete entire rows rather than just the cell content:
   

In a similar manner, you can find and delete a specific duplicate occurrence(s), for example only 2^nd or 3^nd instances, or 2^nd and all subsequent duplicate values. You will find an appropriate formula and step-by-step instructions in this tutorial: How to filter duplicates by their occurrences.

Well, as you have just seen there is a number of ways to remove duplicates in Excel, each having its strong points and limitations. But what would you say if instead of those numerous duplicate removing techniques, you had one universal solution that wouldn't require memorizing a bunch of formulas and would work in all scenarios? The good news is that such a solution does exist, and I will demonstrate it to you in the next and final part of this tutorial.

Duplicate Remover - universal tool to find & delete duplicates in Excel

Unlike the inbuilt Excel Remove Duplicate feature, the Ablebits Duplicate Remover add-in is not limited to only removing duplicate entries. Like a Swiss knife, this multi-tool combines all essential use cases and lets you identify, select, highlight, delete, copy and move unique or duplicate values, absolute duplicate rows or partially matching rows, in 1 table or by comparing 2 tables, with or without first occurrences.

It works flawlessly on all operating systems and in all versions of Microsoft Excel, including Excel 2003, Excel 2007, Excel 2010, Excel 2013 and Excel 2016.

In a moment, you will see how quickly and efficiently you can find and eliminate duplicate rows or identical cells in your Excel sheets.

How to get rid of duplicates in Excel with 2 mouse clicks

Whenever you need to remove duplicate entries in Excel, just do the following:

1. Select any cell in the table that you want to dedupe, and click the Dedupe Table button on the Ablebits Data tab. Your entire table will get selected automatically.
   
2. The Dedupe Table dialog window will open, and all the columns will be selected by default. You pick Delete duplicates from the Select the action drop-down list and click OK. Done!
   

As you can see in the following screenshot, all duplicates rows except 1st occurrences are deleted:

And if you want to perform some other action, say, highlight duplicate rows without deleting them, or copy duplicate values to another location, select the corresponding option from the drop-down list:

If you want more options, such as deleting duplicate rows including first occurrences or finding unique values, then use the Duplicate Remover wizard that provides all these features. Below you will find full details and a step-by-step example.

How to find and remove duplicate values with or without 1^st occurrences

Removing duplicates in Excel is a common operation. However, in each particular case, there can be a number of specificities. While the Dedupe Table tool focuses on speed, the Duplicate Remover offers a number of additional options to dedupe your Excel sheets exactly the way you want.

1. Select any cell within the table where you want to delete duplicates, switch to the Ablebits Data tab, and click the Duplicate Remover button.
   
2. The Duplicate Remover wizard will run and the entire table will get selected.The add-in will also suggest creating a backup copy, and because you are going to permanently delete duplicates, we strongly advise that you check this box. Verify that the table has been selected correctly and click Next.
   
3. Select what records you want to find and remove. The following options are available to you:
   • Duplicates except 1^st occurrences
   • Duplicates including 1^st occurrences
   • Unique values
   • Unique values and 1^st duplicate occurrences

   In this example, let's delete duplicate rows including 1st occurrences:
   

4. And now, select the columns to search for duplicates. Because our aim is to eliminate duplicate rows, be sure to select all the columns (which is usually done by default).
   
5. Finally, select the action you want to perform on dupes and click the Finish button. In this example, we expectedly choose the Delete duplicate values option.
   

That's it! The Duplicate Remover add-in swiftly does its job and notifies you how many duplicate rows have been found and deleted:

This is how you can remove duplicate values and duplicate rows in Excel. I hope at least one of the solutions discussed in this tutorial will work for you. And if you are interested to try our deduplicate tools, I encourage you to download a fully-functional trial version, and let us know your feedback in comments.

If you like our Duplicate Remover add-in, we will be happy to make you an exclusive 15% off offer. Just use the following coupon code on the order form: AB14-BlogSpo. It is valid for Duplicate Remover as a separate product and as part of Ultimate Suite for Excel.

I thank you for reading and hope to see you on our blog next week!

You may also be interested in:

• How to identify duplicates in Excel (in 1 table)
• How to compare 2 columns for matches and differences
• How to highlight duplicates in Excel