Visualize Model Target in Unity

Hello,

I have created a model target by using the object scanner application and imported it in unity. I would like to augment the real object by adding a cube around it (in the first place) but the problem is that I can't see the bounding box of the model, moreover, I would like to visualize the model itself in the unity 3d scene so that I can add the virtual assets relative to the model. Is there any way that I can visualize the model in Unity? Probably worth mentioning that after importing the custom package where my model is, I can only find the DAT and XML files of the model, but not the model itself.

Thanks!