How To Find Duplicate Entries In Excel Using Formulas?

To find and highlight duplicate values in a range of cells in Excel, you can use the “Conditional Formatting” feature. Here’s how:

  1. Select the range of cells that you want to check for duplicates.
  2. Go to the “Home” tab in the ribbon, and click on the “Conditional Formatting” button.
  3. Select “Highlight Cells Rules” and then “Duplicate Values”.
  4. In the Duplicate Values dialog box, choose the formatting options you want, and then click “OK”.

Alternatively, you can use the COUNTIF function to identify duplicate values in a range. Here’s the syntax:

=COUNTIF(range, value)

For example, if you want to check for duplicates in the range A1:A10, you can use the following formula:

=COUNTIF(A1:A10, A1)>1

This formula will return “TRUE” if the value in cell A1 appears more than once in the range A1:A10, and “FALSE” otherwise.

You can then use this formula in an “IF” statement to highlight the duplicates or take other actions as needed.

=IF(COUNTIF(A1:A10, A1)>1, “Duplicate”, “”)

This formula will display “Duplicate” in the cell if the value in A1 is a duplicate, and an empty string otherwise.