According to the official website, the software can import and export content. I've downloaded the version from the official website and used the Import/Export function in both Administrator and Demo mode, but it appears that it's not working.
This might be a limited function or a bug. Either way, you can send an inquiry to the developers using the following email in order to find out what are the supported file types and it's allowed to use the built-in function while the software is in demo mode.
- Contact email: