Curated copies of Perple_X thermodynamic and solution model datafiles are at:
https://github.com/jadconnolly/Perple_X/tree/main/datafiles
Option files have been removed from the datafiles directory and are now located at:
https://github.com/jadconnolly/Perple_X/tree/main/optionfiles
The current datafiles and optionfiles directories are included automatically when Perple_X is installed from a release. For instructions, see:
https://www.perplex.ethz.ch/perple_x_installation/perple_x_installation.html