Open Mu4 file in 3.7

Since opening a mu4.mxl file don't work for my mu3.7 build,
I choose "Ignore", when I open a mu4.mscz file and get the load error:

"Cannot read file Test_Mu4_File.mscz:
This score was saved using a newer version of MuseScore.
Visit the MuseScore website to obtain the latest version."
Ignore Cancel

Is this how I should continue opening my Mu4 files with 3.7? It seems to work ok!