The End of Period Liability report gives you a rundown of total session card purchases and how many classes were outstanding (unused) at the end of the selected period.
This report helps you calculate your total outstanding liability at the end of your fiscal period.
You can toggle between a summary and detailed view by clicking Detailed Report at the bottom of the screen.
Go to: [Activities & Reports] -> [End of period liability]
Click Export as CSV to export a csv formatted file for your accountant.