Found the new Offline mission program, downloaded it then followed the video to load a mission. The 6 minute video describes how the mission would likely be saved in an HTML file, which it was. Then the video does a quick 5 second zip over of how to change an HTML file to a .res file in MS-DOS. Attempted to follow the very, very weak guidance with no luck.
Then went to 'help' in a vain attempt to rename files. Any suggestions on how to do this without hiring a computer hacker?