Hi @AZ ,
What kind of file format did you save in OneNote for Windows 10?
It's related to the file format but not related to the APPs, I suggest you refer to this support article:
As the article said:
Windows users can choose between two available versions:
- OneNote (formerly called “OneNote 2016”), the free desktop app which runs on all supported versions of Microsoft Windows and which is part of Office 2019 and Microsoft 365.
- OneNote for Windows 10, the OneNote app which is pre-installed on all editions of Windows 10, and which can also be downloaded for free in the Microsoft Store.
On your Windows PC, you can use whichever version of OneNote that you prefer most — or use both Windows versions side by side before you decide. When you’re ready, you can change the default version of OneNote, so that shared notebooks will always open in your preferred version.
Hope the information is helpful.
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