How do I import my Roblox avatar in Blender 2.90?

I know that there are a lot of tutorials on youtube, but most of them, if not all, were done before Blender 2.90. If I do exactly what the video says to do, it still doesn’t work. Does anyone know where I could find a guide/updated youtube video? Please answer in the comments.

Use a rig or import the .obj file

Right click your character model, and tap export selection. Then go to blender, import obj file, then select the model’s obj file.