ApplicationBinary

`application/vnd.openxmlformats-officedocument.wordprocessingml.document`

Word Document (OOXML)

Reference for the .docx MIME type, the modern Microsoft Word document format based on Office Open XML.

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Expected extensions: .docx

HTTP Content-Type Header

HTTP Header

Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document

Associated File Extensions

.docx

Quick Facts

MIME Type	application/vnd.openxmlformats-officedocument.wordprocessingml.document
Category	Application
Type	Binary
Extensions	.docx

Common Usage

DOCX is the default document format for modern Microsoft Word. It is a ZIP-based format containing XML files that describe the document structure.

Used across business, education, legal, and government sectors for creating and sharing formatted documents.

Code Examples

HTML

<!-- Link or embed with explicit type -->
<link rel="stylesheet" href="file.docx" type="application/vnd.openxmlformats-officedocument.wordprocessingml.document">

<!-- Or for script/media elements -->
<script type="application/vnd.openxmlformats-officedocument.wordprocessingml.document" src="file.docx"></script>

Node.js

// Express.js
app.get('/file', (req, res) => {
  res.type('application/vnd.openxmlformats-officedocument.wordprocessingml.document');
  res.send(data);
});

// Node.js http
res.writeHead(200, { 'Content-Type': 'application/vnd.openxmlformats-officedocument.wordprocessingml.document' });

nginx

# nginx.conf — add to types block or use default
types {
    application/vnd.openxmlformats-officedocument.wordprocessingml.document  docx;
}

# Or set for a specific location
location /api/ {
    default_type application/vnd.openxmlformats-officedocument.wordprocessingml.document;
}