Jul 12, 2024 · If you need to find duplicates in two columns within the same rows while considering case sensitivity, follow this approach. Suppose we have two columns ( List 1 and List 2 ) with some overlapping names, but the case of the letters differs.

To highlight duplicate values in two or more columns, you can use conditional formatting with on a formula based on the COUNTIF and AND functions. In the example shown, the formula used to highlight duplicate values is: =AND(COUNTIF(range1,B5),COUNTIF(range2,B5)) Both ranges were selected at the same when the rule was created.

You can use the following methods to compare data in two Microsoft Excel worksheet columns and find duplicate entries. Method 1: Use a worksheet formula. Start Excel. In a new worksheet, enter the following data as an example (leave column B empty):

Dec 26, 2023 · In this article, I will show you 7 easy methods to find duplicates in two columns in Excel. What is the fastest way to find duplicates in Excel? How do I filter only duplicates? To find and highlight duplicates in two columns in Excel using Conditional Formatting, follow these steps: Select the two columns that you want to compare.

Apr 14, 2025 · Learn how to compare two columns in Excel to find duplicates, matches, or extract matching data using Conditional Formatting, formulas, VBA, or Kutools.

Step 1: Create a Helper Column, and type the formula =IF (A2=B2,"Duplicate","No Duplicate") in the first cell; Step 2: Copy down to the bottom, the rows with duplicates in column A and column B will display "Duplicate" and non-duplicates will display "No Duplicate".

Mar 23, 2023 · Now that you have lots of workbooks with a pool of data, or maybe just one huge table, you may want to compare 2 columns for duplicates and then do something with found entries, for example delete duplicate rows, color dupes or clear the contents of duplicated cells.

Excel offers a number of ways to find rows that contain duplicate values. However, most of them focus on finding rows where the value in just one column is duplicated. In this lesson, we look at how to use the COUNTIFS function to find rows with duplicate entries in two or more columns.

Dec 23, 2024 · Method 2: Finding Duplicates in Excel Using COUNTIF Formula The COUNTIF function is a powerful and versatile tool in Excel that allows you to count occurrences of specific values in a dataset. By using COUNTIF to Find Duplicates , you can efficiently identify duplicate values in a column and categorize them as "Duplicate" or "Unique."

Feb 25, 2025 · Let’s say you have two lists of values in Excel and want to find out all the common values (ie duplicates) and extract them. In this article, let me explain the formulas for this. Here is the formula to count number of common values between two …