Good morning, I have been looking in tutorials and I have not found the way to load my simbrief plan in the fmc of my 777F. the path i have loaded in the simbriefdownloader is C:\Users\User\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalState\packages\captainsim-aircraft-m774\work. but in request-fmc it doesn't respond. Is it possible to load the route automatically or simply not?

Don't know if that helps, but in FSX you download the flightplan (.pln) to folder C:\documents\flight simulator X files  and then you can load it with FMC - Request send

You open the simbreif plan with the default P3D Flight Planner, double check it, then save it in the the Flight Planner format (.PLN). Once done you can open it with the 777 CDU by clicking on SEND then FLTSIM FPLS the selecting the saved flight plan.