[itsme]

As already written my main use of the links is on Android where I use the link that opens the musicxml file in Practice Bird - the MuseScore version doesn't matter in this case.

My batch file that I use to create the links starts with creating the musicxmsl file:
"d:\HerbertsGoogleDrive\PortApps\MuseScore3Portable\MuseScore3Portable.exe" %2 -o %~n2.mxl
MuseScore3 creates useful .mxl files also when called with an mscz file created with MuseScore 2

To edit files that I want to keep as MuseScore 2 files I use a portable MuseScore 2.