A family of Microsoft word processing software products for creating web, email, and print documents.
I've tried all the options in the recommended article (which, incidentally, is out of date since it does not include any reference to Windows 10 or the use of One Drive). None of the suggestions helped me recover my Word file.
Given my experience, I obviously cannot agree with your assertion that 'Saving files on OneDrive is more secure way.' It was because I had been assured that was the case that I took to saving the a 120,000-word Word file on One Drive. Now I will have to fall back on an earlier draft, do several extra days of work to get back to where I was, and will not, of course, be able to trust One Drive again. Either it is 100% secure or it is not secure. The advantage of making one's own backups is that we have full control of the process and only have ourselves to blame if something goes wrong.
Danny