List Views are defined while viewing the list of data records to which it applies. Once the List View is defined, it is available in the List View drop downs for the lists to which it applies either as a view that is available to all or as a private view which is unique to the user creating the view. Some examples of lists which utilize a list view are contacts, site users, volunteer calendars, volunteer shifts, and interactions.
On most pages where a list view exists there are export buttons available for CSV and XLSX output versions. It will include all the records and columns in your currently selected list view.
See the button location below: