Nothing detailed the files in a blog post (via 9to5 Google). The .stl and .stp files made available are for the rear cover the CMF Phone 1 ... claims about what 3D printing can allow, so I ...

The mobile phone ... as a 3D-printing Development Kit, or 3DK for short." The files, in standard 3-D printer formats, are available on the site in three versions of the rendering: two STL options ...

The Disarming Corruptor is a free piece of software designed to "corrupt" and "repair" an STL file used to 3D print. It's based on seven key values that can be tweaked to distort the file.