Hero planner - How to open the old .chp files

[Truehero]

Hi all you beautiful people!

 

Since getting back into Paragon City, I remember I used to have a cool hero planner that I used to plan my builds. I found my old files, but have no program to associate with them anymore. They have a file extension of .chp. I downloaded the new Mids planner, but noticed it uses .mxd and doesn't seem to recognize anything else but txt. Does anyone know of a program that can open .chp files? Would help me greatly!

 

Thanks!