Probably have to do a bit of work in Revit first

Being a BIM modeler and app, things like these windows are setup as “Families” and various other elements that interact in IFC and shares with autocad and large scale projects.

Look at converting families to parts. Exporting the parts you want out. You woulnt want to start with exporting your “building” to look for good single working models all perfectly individualized components and parts. Probably run into lots of issues with stuff