By including drop-down lists in an Excel spreadsheet, you can simplify work for yourself and your team and ensure that data is entered accurately. Many people assume that it takes advanced know-how to create drop-down lists in Excel—but they're actually simple to create. In this quick course, Excel expert Chris "Smitty" Smith shows how to quickly and easily work with drop-down lists. Smitty walks through organizing your list data, creating the drop-down list, and responding to any error messages you might encounter along the way.