If you're comfortable creating groups, and importing users via CSV into a group this article is about how to import more fields and information about your users that can help you with reporting.
To learn the basics about groups see this help article
On your user CSV upload Email & Name are compulsory fields. Add more fields like Region or Start Date to be stored. When you want to export your data this information can be displayed with the user.
Talk to your account manager about custom report options and exports