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How to compare two columns and delete matches in Excel?

If you have two columns/lists including some duplicates, now you want to compare them and find out the matches, the delete them, how can you quickly solve? In this article, I introduce different ways to help you handle it in Excel.

Compare two columns and delete matches with formula

Compare two columns and delete matches with Kutools for Excel good idea3


Select Duplicate & Unique Cells (quickly select duplicate or unique values in a column.

doc select unique duplicate value

Compare two columns and delete matches with formula


In Excel, I introduce formulas to help you find out the match ones.

1. Select a blank cell next to the first column you want to compare (Name1), here I select B1, and type this formula =IF(ISERROR(MATCH(A1,$C$1:$C$10000,0)),"Unique","Duplicate"), and press Enter key, and drag the autofill handle down to fill this formula to the cells. See screenshot:

doc compare delete match 1
doc compare delete match 2

Note: in the formula, A1 is the first cell of your first column which you need to compare and C1:C10000 is the column you want to compare with.

2. Then select the formula columns, and click Data > Filter. See screenshot:

doc compare delete match 3

3. Click at the arrow in the first cell of helper column, and check Duplicate only from the drop down list. See screenshot:

doc compare delete match 4

4. Click OK. Now only the duplicates are visible, select them in the Name1 column, and press Delete key in the keyboard to delete them.

doc compare delete match 5
doc arrow down
doc compare delete match 6

5. Click Data > Filter again to remove the filter, and then remove the formulas if you do not need it any more.

Now all the matches of two compared columns are deleted.

doc compare delete match 7


Compare two columns and delete matches with Kutools for Excel

With above method is somewhat troublesome, and you can use Kutools for Excel’s Compare Ranges function to quickly select the matches in two columns and then delete them.

Kutools for Excel, with more than 120 handy Excel functions, enhance your working efficiency and save your working time.

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

1. Click Kutools > Select > Select Same & Different Cells. See screenshot:

doc compare delete match 14

2. In the Select Same & Different Cells dialog, Check My Data has headers if your selection contians headers (the selected headers must be same if you check this option), and the check Each row  and Same Values option. See screenshot:

doc compare delete match 15

3. Click Ok, a dialog pops out to tell you the number of selected cells.

doc compare delete match 16

4. Click OK to close the dialogs, and the match ones in first column are selected, and press Delete key to delete them.

doc compare delete match 17

If you want to highlight the same values between two columns, you can check Fill backcolor or Fill font color option and select a color you want from the list.
doc compare delete match 18

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