FSFO GIVES SAYS CANT READ FLIGHT PLAN WHEN TRYING TO UPLOAD PLAN TRIED ALL KINDS OF DIFFFERNT PLANS, PLN. RTE. VFP ETC
FSFO should be able to read any FS9, FSX or P3D generated flight plan. I suspect you’re not importing the correct file (ie a .pln extension); try generating a flight plan via your sim and importing it. It will work.