AutoCad XData Organization And Refresher – CadWorx

So I am working with CadWorx. I needed a refresher on my Autocad XData – I suspected that is where the data was stored as CadWorx files seem to have a 3D shape and a line grouped together … but why? Well, the line had XDATA attached to it was my suspicion and I was right. Here are some links that I found helpful to get me re-oriented after 4 years of needing this info …