Hi Daniel,
We’re glad you are considering switching to The Events Calendar. But at the present time, we do not have a way to import data. It is on our roadmap, however. While we don’t have a specific release date at this time, we are working on building a CSV-based importer that will be added during the 3.0 cycle. If you would like to get in on an early beta, with no guarantees, drop an email to pro/at/tri.be that you’re welcome to test out.
Sorry I don’t have a better answer for you at this time.
— Julie