I am afraid of not many users need these information in the export as it is not useful information for processing registrants data. If you want, you can edit the code a bit to include it into the export:
1. Open the file components/com_eventbooking/helper/data.php
2. Find these lines of code;
Code:
$headers[] = JText::_('EB_ID');
$fields[] = 'id';
[code]
3. Add the two lines of code below above that line:
[code]
$headers[] = JText::_('IP');
$fields[] = 'user_ip';
After that, it should work as expected
Tuan