Excel - VLOOKUP to filter rows based on numbers

Issue

I have list of Incident numbers (both Closed and open) in Column A and only open incident numbers in column B. I should be able to filter the rows based on the numbers in column B so I can mass close the rest of the incidents.

Solution

In column C you can have a VLOOKUP or MATCH

Lets say data in Column A starts from Row 2
and data in column B starts from Row 2
then in C2 you can write

=IF(ISERROR(MATCH(A2,B:B, 0)),

"Close Incident", "Open Incident")

Idea is if number in A2, is not found in column B, then it is a closed incident. If the number is found then it is open incident.

You can drag this formula down and apply filter to see what needs to be done

Note

Thanks to rizvisa1 for this tip on the forum.