These files are Simplify 3d factory setting. The real advantage with Simplify factory settings is that not only does it include the STL file, but it also includes all of the settings and parameters of the slicing program and options. So for our customers that have Simplify 3D it's as simple as double-clicking on one of these files, Simplify 3D will automatically launch and all you have to do is generate the G-Code. All of these files have been tested on our machines here at our shop. You might have to adjust your speeds and feeds but probably only slightly for your clay consistency. 

Let me know if these work out with some feedback and I'll post some more.Danny