Hi @Anandhan Sathyanarayanan ,
Here are steps to export:
For some reason, SharePoint online hides the ability to export the contents of a One Note file.
But you can still download the file with a special method.
- open the one note file->file ->edit in Desktop app
- Onenote app->file->export
Import:Import it into another environment means move to another sharepoint site or something else? I suggest you drag and drop the .one file directly into it.
And the onenote file you uploaded from the physical machine can be downloaded directly from the sharepoint site.
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