this is an common problem when your machine is doing multiples tasks in the background it give an false impression that it has been saved correctly!
if you have been saving to one file only then it is more likely to be corrupted.
but if you rename each file then there is an good chance of get your file back
this maybe an good remedy for you
go to your windows app's and uninstall then reinstall the programme again
but before doing this important step[ please check your member order list first!
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