When the dialog box closes, you should have a Lookup option on your Tools menu in Excel 2003, or a Lookup button in the Solutions section at the far right under Excel 2007's Formulas tab.

The number-crunching workhorse in the Office suite is getting new tools to help newbies and power users alike. Here are 10 reasons to upgrade to get Excel 2013.

These five Excel tools—Quick Analysis Tool, Flash Fill, Fill Handle Options, Menu Key Shortcuts, and Navigation Pane—are designed to enhance your productivity and simplify data management.