Admin user types will automatically have the UC ELC Extract node in the navigation without any additional security setup.
All other non-Admin users will need to be given read access to the UC ELC Extract permission set in order to see the UC ELC Extract node and also to update page options, process the records and create the files.
The Teacher, Parent and Student Portal Groups do not have access to the UC ELC Extract node even if permission is granted to it.
Setting up permission is available in the Security node of the navigation. Please see the Security article for more detailed information on how to set up permissions for users and groups.