You can issue an order report which will provide you with your customer's contact details (name, surname, email, phone) for a specific event.
Go to the "reports" tab and select "orders".
In the "event" column select the event(s) which you want to issue a report for. If you want a report for a specific date select that from the list.
You can select more than one options on each filter by keeping the Ctrl key pressed while making the selection.
If you want to see the total of orders for an event, in the "Order creation date" set the date sales started.
After you've made the selections you need click on "show" and then "export to Excell".
After the report appears you can then filter it further (eg. by transaction value).