You can download a CSV file of your Ad Hoc Users and Preregistrations data from the Manage Ad Hoc Users area.
Note: The name of this area can be set by your company, so the area may be named differently.
Download your data by going to the Users or (if available) the Preregistrations sections of the Manage Ad Hoc Users area. Click the Download button in the top right corner of each page; your CSV file will automatically begin to download to your default download directory.