While these are SketchUp files, Archicad 22 has a built-in tool to import and convert them into GDL objects. Which Operating System are you using (Windows or macOS)?
The library isn't just a collection of 3D objects; it contains the "intelligence" of your BIM model. The Archicad 22 version introduced several enhancements, including: archicad library 22 download
A massive database of manufacturer-specific products compatible with Archicad. Graphisoft Community: While these are SketchUp files, Archicad 22 has
Accessory adds on/library for ArchiCad 22 - Graphisoft Community While these are SketchUp files