I am able to import fs flight plans from *.pln format into the fms but only if created with the actual flight planner from fs9

when i try to import a .pln file created by a third party planner such as fsbuild or fsnavigator i get very strange waypoints . The waypoints are assigned weird id.s and the lat/long is wrong,

Can someone tell me how  and which planner works for creating and editing flight plans for the capt sim 757 for fs9

thanks in advance  

peter

pkofman@rogers.com