I have a list of offices and their corresponding manager, however there is no specific flag for a manager. I have a second set of data that contains all of the address that are linked to the employee. Since employees often work at multiple locations, they have multiple locations address data associated with their profile. After I join these two data sets, I get far too much data, since it brings in all of the individual employees addresses that are linked to multiple locations. How can I ensure I only keep the Addresses based on the first sheet? SO employee A works for building C, D and E but is the manager for D, how do I ensure I only keep the address for D for that employee. This dataset contains thousands of employees and offices so I cannot do it manually.