This is a C++ version of the original VB code from RCGroups user ivanc discussed in his thread:
https://www.rcgroups.com/forums/showthread.php?2537359-Model-File-Utility-for-Futaba-18SZ-14SG-and-8FG
To build it on any platform, run build.sh Bash script (in Windows, run it in Git Bash).