https://github.com/sttng/LDD/blob/master/pyldd2obj.py
tested on macOS Mojave and Python 2.7
Usage: pyldd2obj.py test01.lxf out_obj_file
Not by me but by jonnysp - I only did some backporting from Python 3 to 2.7 and added UTF-8 support.
Converts LDD lxf files into Alias|Wavefront obj files including mtl files and png textures.