
Hi @Jesse Ruiz,
Thank you for posting in this community.
1.How to find all one Note files (.one) in SharePoint.
Please open your SharePoint App and type filetype:one
in the input box above, this will search for all OneNote files in your organization.
2.How to download all one Note files (.one) in SharePoint.
Unfortunately, SharePoint Online does not have the ability to export the same type of file at once at this time. You will need to download each OneNote file manually. Or you can search if there are other third-party tools that can do this.
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