how do i transfere the bim models from my folder to revit files, projects

Hi Smitha, to download files you will have to go to each product/bim object's page to do so. If there is a Downloads section on the right then you can download them, but not all products have BIM/CAD files so if there is no Downloads section on a product page unfortunately that one does not have any files attached to it. Let me know if I can help you with anything else.