OneDrive Privat / Business. It seem that I have two accounts that causes problems

Dear Augustine_E,

Thank you for your engagement in my case. There should be two answers to my problem message by me: The first of should be a screenshot, the second an all-clear signal, that the problem, a overloaded processor, is solved. It seems to have not worked accordingly.
I am so sorry.

Hi StankoBeronja,

It looks like somehow; the OneDrive is detecting invalid filename. As per the description, I understand that the filenames have all allowed character, in that case, it could be a bug.

Please be advised that as a Community Advisor(Not Microsoft Staff), I don't have access to the user's account, so it's difficult to investigate this issue further.

Nevertheless, You could OneDrive contact support with these options:

Contact OneDrive support -

OneDrive personal: If you need help, email the OneDrive support team https://go.microsoft.com/fwlink/?linkid=2113579.

OneDrive for Business users: Select the blue OneDrive cloud icon, select More > Send feedback > I don't like something.

Regards

Nik

That seems to have done the trick! Thank you

Sorry but it would be really helpful if the description of the problem were read properly. It is precisely because it is not possible to do this that I posted here in the first place. When I try to do anything with that account it refuses to let me in and gives the error message that the account name does not exist. It does. Microsoft created it. I have no access to it, that is the problem.
<br />

I have exactly the same problem as described by Roland and it is still there!! 6 Oct

I have been using dozens of worksheets for months, opening, updating, closing etc without any issues. Now they all seem corrup/incorrect.

The worst is that it is almost impossible to see any remarks from Microsoft that inform users. It has taken me three days to find Rolands excelent description of the mistake .

**** can happen, but it shouldn't be a users Job to sort it out.

I tried to re-install my "Office/Excel" with the Product Key Nr hoping that might solve the problem, BUT the System told me, after many attempts, my Outlook account was not okay and closed (I had never used it other than to download "Office") and I should
create a new one. Having done that I received the obvious Microsoft answer - My Product Key is under my old account. I need to use that one - the mind boggles!!

Sorry for english, but it is easier for me. I have no problem reading the German, but writing is a bit so so (german grammer)

By the way Roland - ich kann auch die Hälfte der Beschreibungen/Erklärungen nicht folgen. Ich glaube sie setzen voraus alle "users" sind IT Fachleute.

Grüße