These are Guitar Pro files with bends n vibrato, Guitar Pro will Export them to xml > Import as xml and save as midi from that xml, and it has bends n vibrato in the midi, this is what RealBand/Biab should do with the xml export of RealCharts.
Open the xml in Realband it has the bends in the notation > save to xml > Import xml to Guitar Pro it looses the bends.

The files in the zip are: original gp3/5, exported xml, xml exported to midi.

GuitarPro_XML.zip