When you have created a Membership for your riders you can keep track of all your active members.
Go to your dashboard and navigate to Membership in the menu on the left.
Select Members at the top of the page. Now you will see a list of your active members and their registered details (Member ID, Name, Email, Phone & Membership validity).
To export this list and use or manipulate the information on a spreadsheet, simply click on Export and this will download the file for you.