I downloaded some tutorial files but they were saved for version 2018. How can I open the files by using version 2020?
PLAXIS software supports backwards compatibility. Any older project files can be opened with a newer version, here the CONNECT Edition V20.
Therefore, you should have no problem opening the projects in PLAXIS 2D CONNECT Edition V20.
If you encounter any issues, please submit a service request.
Then, one of our support engineers can help you in detail: https://apps.bentley.com/srmanager/ProductSupport