How to convert .psarc files into EOF-friendly formats

TIP FROM MEMBER "coldrampage":

I'd recommend using dlc builder over rstoolkit as it's easier to use and more up to date.
You also need the correct version of wwise to convert to/from the .wem audio format.

If you import a .psarc into dlc builder (File/import psarc file) and have these options enabled in settings it'll give you an eof project file in the output folder you can open to mess around with. Once you're done you just rebuild the song with the modified xml files eof generates (assuming you have the import/export settings set to generate rs2 files)

One of these days I'll have to make a proper guide on how to do this and link to that each time something like this gets asked.