I have a license for Sketchup Pro 2017 but recently I downloaded a trial of 2018 make…
I’ve been working for an month in this program, but now ofcourse it is expired en I can’t open any of my drawings in 2017 pro.
Upload the SU2018 models to the 3D Warehouse and then download them back to your computer by accessing the Warehouse through SU2017. Or you can open them using SketchUp Free (browser-based SketchUp and then download them back to your computer as SU2017 files.