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John DarbyFlag for United States of America

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Excel compare 2 columns

Greetings,

I am trying to compare two columns and find the values which are common between each. I have both in alpha order, the columns have computer names. Column01 has 151,000 cells with values and Column02 has 15,000 cells with values. I need to return those values which exist in both columns. I was using this:

=COUNTIF([Column01],[@Column02])

I ran some test values which are common between the columns and they didn't get counted (expected a "1" returned). Suggestions on the formula to use?

Thank you,
JohnD
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Haris Dulic
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ASKER

Appreciate all the options;I will explore these and see which approach help best in this instance

Thank you!
Thank you!
You're welcome John! Glad I could help.