thanks for reply, i have already tried to edit simroutes with fsx and resave it, like changing altitude, some waypoint or VFR/IFR setting but didn't work

this is strange because in the nice 757 FMC TUTORIAL in this forum the import feature works, but not on my pc.

for sure fsx created .pln works perfectly with 767 but i have to search on the map waypoints and this isn't so simple so i prefer write navigation waypoints on flight sim commander and save as .pln with great success

michele