Thx!
QTX (pro does not exist anymore) shows Information / Format: "L R C LFE LS RS".
MediaInfo: "L C R, Back: L, R, LFE" (
https://mediaarea.net/en/MediaInfo)
for the SAME file.
Drag and drop from Finder brings up L C R LS RS LFE in ProTools 2018.12.
Audacity: L C R LS RS LFE.