RealBand 2019 also supports Music XML files. This, from the RealBand 2019 User Manual...
Open MusicXML Files
RealBand supports MusicXML so you can easily import MusicXML files from your notation programs such as Finale, Sibelius, and Guitar Pro to RealBand.
If you select a MusicXML file in the Open dialog, the Load XML File dialog will open. In this dialog, select a track that you want to load. To select multiple tracks, hold down the CTRL key and click a track. If you want to change the destination track, right click on a track and select Destination Track. Then, select elements that you want to load from the XML file. Finally, press [OK], and the XML file will be loaded to RealBand.