ext = mexext() returns the filename extension for the current platform.

extlist = mexext('all') returns the extensions for all platforms.

A mex file is a type of computer file that provides an interface between Octave or the reference commercial software and functions written in C, C++.

Nelson also provides its own C++ API to manage internal Nelson objects.

Nelson cannot load mex files generated by other software, but you can rebuild them for each software target.

Mex generated by Nelson have a file extension beginning by .nex