Is there a way to export an game object as a collada file (.dae) at runtime?

I create meshes and objects at runtime and my users want to export those objects as a collada file (.dae) I have tried COLLADA Exporter for Unity 5 from the asset store https://www.assetstore.unity3d.com/en/#!/content/40946 But this just let me export files only when running the Unity editor. Is there a way to create .dea files while running my own unity code (at Mac or Windows)? Is there a way to use the .dll files from the Collada Exporter at runtime, or is there a other way to do this? Thanks in advance!