Move or Export OneNote Notebooks to an External Drive on Mac
Question details
The user wants to export or move their OneNote notebooks to an external drive on a Mac but faces limitations with OneDrive storage requirements and macOS ZIP extraction errors.

- Product
- Microsoft OneNote
- Device & OS
- macOS
- Scenario
- Attempting to back up, export, or move OneNote notebooks locally to an external drive on a Mac.
- Observed behavior
- OneNote for Mac forces notebooks to be stored in OneDrive or SharePoint. Exported ZIP files of large notebooks often fail to extract on macOS, displaying Error 79 or missing signature errors in the Archive Utility.
Before exporting large notebooks, ensure you have a stable and fast internet connection to prevent corrupted ZIP downloads, and verify you have sufficient local storage on your Mac.
Extract Exported ZIP Files Using Alternative Utilities
Bypass the native macOS Archive Utility errors by using a third-party unarchiver or a Windows PC to successfully extract your exported notebook.
When exporting large notebooks from OneDrive on the web, the generated ZIP file can sometimes lack a central directory signature that macOS Archive Utility requires, resulting in Error 79. Using a more robust extraction tool can solve this.
Log into your OneDrive account via a web browser, locate your OneNote notebook folder, right-click it, and select 'Download' to generate the ZIP archive.
Instead of double-clicking the file on your Mac, download a free third-party extraction tool from the App Store (such as The Unarchiver) and use it to extract the downloaded ZIP file.
Because OneNote for Mac cannot open locally stored notebooks, you must upload the successfully extracted notebook folder back into OneDrive if you wish to view or edit it on macOS.

Migrate Notebook Sections to a Secondary OneDrive Account
Transfer your notebooks to a newly created, free OneDrive account to free up space without dealing with corrupted ZIP exports.
Use OneNote on Windows for Direct Local Export
Bypass macOS limitations entirely by using the desktop version of OneNote on a Windows PC to export directly to a local or external drive.
Experience Unrestricted Local File Management with WPS Office
If you are frustrated by cloud-only restrictions in Microsoft OneNote for Mac, consider switching your document workflows to WPS Office. It provides a lightweight, fully compatible suite for your daily office needs, giving you the freedom to save files locally or to any external drive without being forced into a specific cloud ecosystem.
- 1. Download and Install: Get the free WPS Office suite for your Mac directly from the official website.
- 2. Create Your Documents: Use the built-in Writer, Spreadsheet, or Presentation tools to manage your notes and data.
- 3. Save Directly to an External Drive: Press Cmd+S and seamlessly choose your external drive as the save destination.

Frequently Asked Questions
Why does macOS Archive Utility show Error 79 when unzipping my OneNote notebook?
Error 79 typically occurs when the downloaded ZIP file is extremely large or the archive structure generated by OneDrive is missing standard signature headers. Using a third-party extraction tool or extracting the file on a Windows PC usually resolves this.
Can I open a locally saved OneNote notebook directly on my Mac?
No, OneNote for Mac does not support local notebooks. It requires notebooks to be hosted and synced via OneDrive or SharePoint. If you extract a notebook locally, you must upload the folder to OneDrive before the Mac app can open it.
Is it possible to export a OneNote notebook as a PDF on Mac?
Yes, you can export individual pages or sections as PDFs using the Print dialog (File > Print > Save as PDF) on macOS. However, this flattens your content and destroys the interactive notebook structure, making it unsuitable for a full, editable backup.
What does the 'End-of-central-directory signature not found' error mean?
This terminal command-line error indicates that the ZIP file downloaded from OneDrive is either incomplete or slightly corrupted. This often happens with very large notebooks that time out during the server-side packaging process.




