I downloaded Z88AuroraV2, for Windows7.
The pdf file "theoryguide" shows the "GENERAL STRUCTURE DATA Z88I1.TXT" starting on page 54, and much more... Z88I2.TXT, Z88I5.TXT...file checker Z88VRY.

The explanation for the KFlag for cylindrical coordinates versus Cartesian coordinates seemed contradictory?

There is also DXF CONVERTER Z88X which is supposed to convert dxf r12 files to the 3 .TXT files.
There is an STL CONVERTER, Z88GEOCON...
Perhaps a .js converter could be checked with the above two converters?

(I've never used Z88)

- Brian