How can I preview file icons without having to open them one by one in SketchUp 2023?

I upgraded to SketchUp 2023 and would like to know, in this version, how can I preview files without having to open them one by one to see what’s inside?

Start by making sure you installed SketchUp correctly. Close SketchUp, find the installer which is probably still in your Downloads folder, right click on it, choose Run as administrator, and when the optoion is offered, choose Repair.

Good luck with that !

After repairing and re-installing SketchUp several times correctly and then uninstalling all versions prior to 2023…

I finally did a Windows re-install - which was fun - but it fixed the missing thumbnail previews.