I have 2 sets of data, column A contains 200 unique names. Column B contains 55 of the names from column A. What I want to do is search column A and remove the names that are present in column B so that the difference would be column A containing 145 unique names and column B would contain 55. I would prefer to do this using a helper column or two and a formula, but if it requires a macro, that will do as well. Any help is greatly appreciated.