A list is a basic way of storing information. The list design, or schema, is the set of columns and types, which forms the structure of the list. The design can be created and the list data populated in several ways.
Import an exported list design: Once a list has been defined, whether or not it is populated with data, you can export the design for use in creating another list.
Edit the List Design: Refine an inferred schema or make other changes to an existing design.