How To Align Duplicate Values within Two Columns in Excel

This post will guide you how to align duplicate values within two columns based on the first column in your worksheet in Excel. How do I use an formula to align two columns duplicate values in Excel.

Aligning Duplicate Values in Two Columns


Assuming that you have two columns including product names in your worksheet. and you want to find duplicate values in those two columns(Column A and Column B) and align them based on the first column in a new column(Column A and Column B). How to do it. And you can use an formula based on the IF function, the ISNA function, the MATCH function, and the INDEX function. Like below:

=IF(ISNA(MATCH(A1,$B$1:$B$7,0)),"",INDEX($A$1:$B$7,MATCH(A1,$B$1:$B$7,0),2))

Type this formula into the first cell in Column C, and press Enter key on your keyboard to apply it. then drag the AutoFill handle down to other cells to apply this formula.

How to align duplicate values within two columns1

Note: Cell A1 is the first cell in the first column, and B1:B7 is the range of cells in the second column.

Related Functions


  • Excel IF function
    The Excel IF function perform a logical test to return one value if the condition is TRUE and return another value if the condition is FALSE. The IF function is a build-in function in Microsoft Excel and it is categorized as a Logical Function.The syntax of the IF function is as below:= IF (condition, [true_value], [false_value])….
  • Excel INDEX function
    The Excel INDEX function returns a value from a table based on the index (row number and column number)The INDEX function is a build-in function in Microsoft Excel and it is categorized as a Lookup and Reference Function.The syntax of the INDEX function is as below:= INDEX (array, row_num,[column_num])…
  • Excel MATCH  function
    The Excel MATCH function search a value in an array and returns the position of that item.The MATCH function is a build-in function in Microsoft Excel and it is categorized as a Lookup and Reference Function.The syntax of the MATCH function is as below:= MATCH  (lookup_value, lookup_array, [match_type])….
  • Excel ISNA function
    The Excel ISNA function used to check if a cell contains the #N/A error, if so, returns TRUE; otherwise, the ISNA function returns FALSE.The syntax of the ISNA function is as below:=ISNA(value)….
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