Subtracting Duplicates

Hello everyone,

I was given an excel sheet with two columns:

Column A: 3,000 Names
Column B: 7,000 Names

I was told to remove names of people who appear both in Column A and Column B (Column B - Column A) so that I would only have a column with unique values.

ANy help is greatly appreciated.

Thank you,
k

For a quick and easy fix, I would copy column B and paste it under column A. Then I would Use the Data tab at the top and remove duplicates