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."
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Korg PA4x76, Yamaha CP-70 Electric Grand Piano, Zoom L20 mixer/recorder, Turbosound ip500 column speaker system, Zoom B1 FOUR Bass Multi-Effects Processor