What is MIME type "application/msonenote"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

application/msonenote is a MIME type that marks files created and used by Microsoft OneNote. It tells systems that the file holds note data that may include text, images, and drawings.
Files with this MIME type typically have the extension ONE.

This MIME type is key for proper file handling. It informs browsers, email clients, and operating systems to launch the correct application when a file is opened.

• Main use: Identifying OneNote files for correct application association.
• Key functionality: Bundling diverse content (text, images, media) into one organized note container.
• Additional uses: Managing file transfers, email attachments, and document storage where rich note data is needed.

The design supports easy note organization and multi-content integration. For further technical details on MIME types, check out MIME on Wikipedia.

Associated file extensions

.one

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:

    Content-Type: application/msonenote
  

HTML

In HTML, you can specify the MIME type in various elements:

    <a href="file.dat" type="application/msonenote">Download file</a>
  

Server-side (Node.js)

Setting the Content-Type header in Node.js:

    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'application/msonenote');
      res.end('Content here');
    }).listen(3000);
  

Associated file extensions

.one