We have no official import/export features yet. CBSubs does have an import feature, but it only imports subscriptions and requires the user to exist first. The recommended approach is phpmyadmin at this time until we've implemented generic import/export API.
There are reporting extensions for Joomla though. From what I've read a few of them take a database query and format it into a table for you that can be exported. Such an extension maybe a good approach to avoid giving everyone phpmyadmin access. I recommend checking out the below extensions.
extensions.joomla.org/extensions/core-enhancements/data-reports