Doors can only be accessed in the library by using the "door" tool.
Windows with the "window" tool.
Sounds like you are using the "object" tool which will allow you to see the table you downloaded but not the doors or windows.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11