Musescore crashed... and I lost everything, 1000's files
Musescore crashed this morning.
I uninstalled, re-installed etc, rebooted, the Tut.
I am 62 yrs and still has at least 15 yrs music education ahead of me. COMPLETELY dependent on Musescore for my work. Lessons, arrangements, compositions, comms with other mus-teachers, etc. Daily between 1 and 6 hrs working with MS.
Now lost EVERYTHING. Thousands and thousands of files from the past 12 yrs of work.
All my files are in format '.FILENAME.mscz,' and cannot open. It states 'which program do you want to open this file' with no reference to musescore.
What to do, please?