A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
I'm afraid MS could be missing out on a potentially large Mac user base if they do not address this issue. I see that I'm replying to a post that is over two years old, and the issue still remains. Please see what can be done to open OneNote up to Mac users who wish to use local files.
(this is not just an answer to you but to all who are constantly "threatening" Microsoft to lose users on OneNote if they don't *this* or *that*
You all are missing one point:
Microsoft has no strong interest in OneNote users at all. Why should they? It's completely free. They would sell probably not one Office 365 less if OneNote wasn't included.
They want cloud and service users, not OneNote users. So if you don't want / are allowed to use OneDrive / OneDrive for Business anyway, it does not matter if you will use OneNote or not.