what do you mean....the rsf is for rebuilding.....iirc you dont have a gateway yet to be able to play them.....if your wanting to get the decrypted files you would need xorpads, not the rsf file(which are not allowed to be shared on here unfortunately)
oh actually if you have a repacked rom it may be zero key'ed, in which case you can just extract it with ctrtool...
Code:
set /p dsfile=Enter the filename:
ctrtool --exefs=exefs.bin %dsfile%
ctrtool --romfs=romfs.bin %dsfile%
ctrtool --exheader=exheader.bin %dsfile%
ctrtool --romfsdir=romfs romfs.bin
ctrtool --exefsdir=exefs --decompresscode -t exefs exefs.bin
here try that as a batch script, assuming its a zero key rom it *should* work fine