So I made a model with a material that has a complex node system and I want to export that material so that I could apply it to the model. Is there a way to do such a thing?
No, none at all as the rendering pipelines are all different for every package. So unless the other package has a similar shader node, allowing you to re-create the shader, you're out of luck and will have to bake out the various textures for application in the other packages. :-(