I would like to know how can these be compared quickly without using for each row activity Sheet 1 has two columns: Id and Source Value.

Please do as follows: Kutools for Excel - Includes more than 300 handy tools for Excel. Once opened, select all the columns that have duplicate data. I am trying to compare two excel sheet that have thousands of data. Find and count unique/duplicate values between two columns with formula of Kutools for Excel Actually, the Kutools for Excel also provides a similar Count times a word appears formula to check and count the unique values between two columns in Excel. Excel will remove all duplicate entries from the selected range.ДЇirst, open the Excel file that has the duplicate data you want to remove.Make sure the appropriate column checkboxes are selected.Click on the вЂњRemove duplicatesвЂќ button.Select the columns with duplicate rows.This feature will scan the selected columns and removes all instances of duplicate rows except the first instance.

To remove duplicate entries from an Excel worksheet, we are going to use the вЂњRemove DuplicatesвЂќ feature. If something goes wrong, you can restore the data from the backup file. Important note: Before removing duplicates in Excel, I recommend you create a backup of the Excel file you are working on. After that follow the below steps to remove all duplicate entries in Excel. So, go through the linked article to analyze the duplicate entries. In my recent post, I wrote a simple way to find and highlight duplicates in Excel.

Excel find duplicates between columns