How to save objects that are in the place in .obj/.fbx format? (roblox)

How to save objects in the place in Roblox Studio in .obj/.fbx format?
Maybe there is a special plugin?


As an example, I need to transfer this Test Dummy to another program,
(In which I am modeling)

To fit the glasses model to the size of his head

If you know how to do it, show in the screenshots or throw a link to the video, which explains how to do it.