HI
SW does not allow to open future version files.
The normal option that is available is to work with exchange files like STEP or PARASOLID.
This issue is a strategy of SW people so that users have to upgrade to new versions.
They don't even have the option to allow archiving in older version format (like AutoCAD does, for example).
We don't know if there is a third-party application that solves this problem.
Ciao