In SolidWorks, go to Tools > Options > System Options > Collaboration . Enable This prevents you from accidentally burning a bridge.
If you have or later and an active subscription, you can officially save files back to the previous two major releases . solidworks future version file converter link
A professional CAD translation suite used by large aerospace and automotive firms. It can read a newer SolidWorks file (within a few versions) and write to an older version, but retains only geometry (no feature tree). In SolidWorks, go to Tools > Options >