Onenote Html Export

Exports local onenote notebooks in html directory format. I've personally used the resulting files to import into Trilium Notes with good success.

❗ Note: If you want to convert an online notebook, import it into your Microsoft Office version of Onenote first.

The bulk of the code was taken from @passbe's blog post. The main change in this repository is the handling of onenote sub-pages and sub-sub-pages. If you would prefer sub-pages and sub-sub-pages to be exported in the same directory use @passbe's blog post script.

The output of onenote-powershell-html-export.ps1 will look like the following. The script will export all notebooks, sections, pages, sub-pages, sub-sub-pages, and attachments:

Export Directory
└── notebook
    └── section
        ├── page.htm
        ├── page
            ├── sub-page.htm
            └── sub-page
                └── sub-sub-page.htm
        └── page_files
            └── file.png
...

Usage

• Have powershell installed
• Open Onenote Desktop (Only Microsoft Office Versions of Onenote are supported by this script)
  • Import notebooks if exported from OneNote web version
• Run the powershell script: onenote-powershell-html-export.ps1
  • Select your export directory.
  • Watch yourself exit Microsoft's walled garden
  • Check console for any errors (most can be ignored: see below)

Notes

• Errors that look like the following can generally be ignored. They are usually a result of a deleted page or an outlook attachment/task:
• Page names containing invalid file/directory charachters are replaced with an underscore: 10_00am.htm replaces 10:00am