Typically, if there is no help file for a module, you should not use it, as it is experimental or otherwise unsupported.
My understanding is that only SAMPLER saves to a CF card.
Load and Save in SIMPSAMP appear to load/save the audio data to internal flash memory. I would suggest that you not use this capability – don't know where it puts it.
Can't really tell you anything more – probably best that you stick to the documented and supported modules.