from the reference guide, page 162:
"Loading Pa2X/Pa800 data
You can load Pa2X/Pa800 data exactly as if they were Pa600 data,
apart for the Global (GLB) and Voice Processor Presets (VOC)
files. Due to the different order in memory, Styles must be reassigned to SongBook entries by using the SongBook Editor software (freely available on
www.korg.com).
It is not possible to load Pa600 data into a Pa2X/Pa800."