You will only need to export the script when you either: 1. intend to schedule with the assistance of the site administrators, or 2. when you run into problems, and you require the assistance of the site administrator to help you resolve them.
This type of export contains the following data files in a compressed state (zip), pertaining to the schedule:
JSON - input data from the input forms
LLS(Low Level Script) - Schedule data in the format that the artificial intelligence can interpret.
OUT - the scheduling solution and and the respective criteria.
Archives - those JSON files that have been sent to the archives (In case you froze parts of the schedule, this will include the automatically archived pre-freeze version of the schedule).