I have a client who asked me if I could help him figure something out based on some sales reports. I said I'd look into it, but I'm not really much of an Excel user. Normally, I can figure this ...

Learn how to use the VLOOKUP formula to compare a maximum of two columns to have common values returned or to locate missing data.

Microsoft's Excel software is one of the best tools for you to organize, analyze, and manipulate data. Here are three ways to compare data in two columns.