OK Talana, I've just figured out the answer. Go to the "Formulas" ribbon, then click "Name Manager" in the "Defined Names" section (about mid-screen). This will bring up a list of all defined names - including lists - and you can edit their names, range of cells, etc. Hopefully this still helps you, even though you posted your message about 4 months ago!
For the life of me, I can't imagine WHO thought these changes were a good idea. It's completely different from any previous version of Excel. People who use productivity software DO NOT want to completely RELEARN the software when there is an updated version. Please Microsoft, make SMALL CHANGES with each new version!! This is INSANE!