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Excel - Search for duplicate in adjacent columns

Issue

I have 4300 old applicant numbers which I need to check against 3300 new applicant numbers in two columns next to each other. Is there any formula under Excel to resolve this matter?

Solution

If two numbers are in adjacent columns you can use the match function.

  • E.g, in cell c2 you can write this:
  • =IF(ISERROR(MATCH(B2,A:A,0)), "", MATCH(B2, A:A,0)) 

Solved by rizvisa1 on the forum.

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