Is it possible to add the reading of the Tinker format ?
The home site of Tinker is http://dasher.wustl.edu/tinker/
If it can help, I'm willing to help as developper to add
The .xyz file is the basic TINKER Cartesian coordinates
file type. It contains a title line followed by one line for
each atom in the structure. Each line contains: the
sequential number within the structure, an atomic
symbol or name, X-, Y-, and Z-coordinates, the force
field atom type number of the atom, and a list of the
atoms connected to the current atom. Except for
programs whose basic operation is in torsional space, all
TINKER calculations are done from some version of
the .xyz format.