What is MIME type "application/vnd.visio2013"?

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

application/vnd.visio2013 is a MIME type for Microsoft Visio files.
It marks files with structured diagram data saved from Visio 2013.
These files store detailed elements for complex diagrams, including shapes, connectors, and text.
They are most often saved with the extension VSDX.

Main use case: Create and share technical diagrams such as flowcharts and process maps.
Other uses: Build organizational charts, network diagrams, and floor plans.
Practical functionality: Supports integration with applications that render and edit detailed visual data.

It ensures that files are processed by the correct software and retains rich, layered graphics.
For further details, see the IANA media type registration.

Associated file extensions

.vsdx

Usage Examples

HTTP Header

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


    Content-Type: application/vnd.visio2013

HTML

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


    <a href="file.dat" type="application/vnd.visio2013">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/vnd.visio2013');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.vsdx

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.