I use the Wilco A320 series for FSX. The flight plans that Simbrief produces have the suffix, for example, EGLLLOWW. nz2k.pln. This is not recognized by my FMC, I have to enter the FP detail manually. No big deal for short trips but a little irritating. Any guidance on how to rectify this would be much appreciated.
I think for the Wilco A320, you should be using the “Wilco Airbus Evo” format (which has a .rte extension) on SimBrief. The “Feelthere” (.nz2k.pln) format is for another aircraft I believe.