This STL model can be used with Artcam Pro software, Vectric Aspire, Cut3d, etc.
Also you may need a Mach3, LinuxCNC (EMC2) or other software for your CNC (depends from your CNC machine).
As the material can be used:
Wood (imitation carving reliefs, mural)
Plastic (manufacture of molds for gypsum, etc.)