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The Remove Duplicates Feature. Excel has a built-in feature called Remove Duplicates that does. Excel will only remove exact duplicates. In this example, the second Square is misspelled as Squarre, so after duplicates are removed, both spellings of Square remain. Undo Function Does not Completely Undo Remove Duplicates - Mixes Data I frequently use the remove duplicate function to do a quick count of unique numbers, and to make sure all expected numbers are present. I then undo the remove duplicates to put the data back where was. Hello all, I was wondering if anyone knew of a way to do the reverse of the Delete Duplicate Function in Excel on the Data Tab. Where the function allows you to select column headers to check for, then finds the records that are duplicates and deletes only the duplicate. I would like a macro.

How to remove all duplicates but keep only one in Excel?

This tutorial introduces the tricks to remove all duplicate values from a list but keep only one in Excel, read the details:

Remove all duplicates but keep only one with Kutools for Excel

Combine all duplicate rows and keep data with Kutools for Excel

Remove all duplicates but keep only one with Remove Duplicates function

In Excel, the Remove Duplicate feature can help you remove all but keep one duplicate value.

1. Select the data list you need, and click Data > Remove Duplicates. See screenshot:

2. Then in Remove Duplicates dialog, check the column name that you want to remove duplicates from, and if your data has header, check My data has headers option, too. See screenshot:

3. Click OK. And a dialog pops out to tell you how many duplicates have been removed, just close it. And now all duplicates have been remove but keep only one in the list.

Remove all duplicates but keep only one with VBA

If you are interested in VBA, here I also can introduce a VBA code to solve this task.

1. Press Alt +F11 keys simultaneously to open Microsoft Visual Basic for Applications window.

Remove Duplicates From Excel List

2. Click Insert > Module, and paste below VBA to the new Module window.

VBA: Remove all duplicates but keep one.

3. Press F5 key or click Run to execute the VBA, and the duplicates in list in column A have been removed but keep one.

Tip: In the above VBA, A indicates the column A, and A1: A indicates the list range, you can change them as you need.

Remove all duplicates but keep only one with Kutools for Excel

There is a powerful utility in Kutools for Excel named Select Duplicate & Unique Cells can quickly select or highlight all duplicates except first one, and then you can remove them.

After free installing Kutools for Excel, please do as below:

1. Select the data range and click Kutools > Select > Select Duplicate & Unique Cells. See screenshot:

2. In the displayed dialog, check Duplicates (Except 1st one) option, and click Ok. See screenshot:

3. Then a dialog pops out to remind you the number of selected cells. And just click OK to close it. See screenshot:

4. And all the duplicates but first one are selected, press Delete key to clear them.

Tip: You also can remove all duplicates but keep one with Select Duplicate & Unique Cells like this:

Select all the unique values including the first duplicates, and then copy them by pressing Ctrl + C and paste to another location by Ctrl + V.

Remove All Duplicates But Keep Only One

Combine all duplicate rows and keep data with Kutools for Excel

If you have some data, and what you want is to combine the duplicate rows then keep the corresponding data as below screenshot shown, you can use Kutools for Excel’s Advanced Combine Rows function.

After free installing Kutools for Excel, please do as below:

1. Select the data and click Kutools > Merge & Split > Advanced Combine Rows. See screenshot:

2. In the Combine Rows Based on Column dialog, select the column you want to remove duplicate from and click Primary Key to make it as the primary key column. See screenshot:

3. Then select the column you just want to keep the data and then click Combine, and select one delimiter form the list. See screenshot:

4. Click Ok, and the duplicate rows are combine and keep the corresponding data.

Combine Duplicates But Keep Adjacent Data

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