Hi, this is something that I cannot seem to find in any of the topics. This is for any Captain Sim aircraft in general but for example one of the aircraft I have is the Captain Sim Boeing 777-200ER from the MSFS 2020 marketplace and I have read online that it is possible to have the entire flight plan from Simbrief loaded into the FMC if the flight plan file is put in the proper location (Correct me if I am wrong though). If I were to download a flight plan from Simbrief using the Captain Sim (PLN) option, where do I have the flight plan from there go? I cannot seem to find a route folder in any of the captain sim aircraft folders that I could see.

Hello,
Here you can see how to use SimBrief FP with 717. It should work for 777.
https://www.youtube.com/watch?v=mnouoBZtGBc