Although in the main screen, above, there is a proposal :“load/save”, when we execute a saving, it’s created three files.
First : . flt with 23 ko
Second: . save with 9 ko
Third: . spb with 45 ko
That three files don’t lead to nothing, only an advice: to go to the repertory: “one store”.
Do you think for having another thing to propose ?
If I understand you correctly, you’re trying to “open” the files created by saving, and expecting it to play back the flight?
That feature is for saving your current position in the flight so you can load and continue later. You can only open it in MSFS. I haven’t used it.
Edit: Actually it appears you’re talking about the flight plan. That saves/loads the flight plan.
If you’re looking to “record” your flight to playback later you can use this freeware tool, or one of the payware tools available.