Whatever happened to this one; maybe s.o. has the time & experience to lift it to 3.1? Source - code up in this #thread^ 
A Bit #annoying 2 have 2 use this workaround:https://forum.renoise.com/t/accessing-the-xml-and-sample-files-in-xrns-xrni-and-xrnt-files/18683.