Working with List Objects
If you select any cell within a list and press Ctrl+L (or choose Data, List, Create List), Excel presents a dialog box similar to the following:
The dialog box (and the menu command that summons it) is somewhat misleading. You already have a list (even if all you have created so far is a header row), so Excel is not about to create one for you. What it is proposing to do is turn your list into a list object, thereby conferring upon it certain properties that it didn't have before. Those properties are as follows:
The list object ...