The import feature does not appear to work for venues. It will only import one row of a CSV file. Also, imported events do not associate with the right venues. They all seem to pick up the last venue entered.
Do you need the Pro version to make this work properly?
Here on the pre-sales forum, I’m afraid we do not provide technical support. I would ask that you take any technical support questions across to our wordpress.org forum – our staff scan it periodically and other community members may also be able to help out.