Eventbrite Event ID: If you are importing from someone else’s Eventbrite account, then you can use this option to import the event using the ID number of the event. The ID number for an event is the string of numbers for an event. You can get Event ID from eventbrite.com

Now you see an event you get the ID of a particular event on click of that event.

Copy this ID and enter it in the large import events by their Event ID field.

Import Into: You choose WP Event Aggregator into the drop-down.

Once you have everything configured, click the Import button and your events will be added to  Events.

You can see events on Events. So this way you import your Eventbrite event using  Eventbrite Event ID.