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

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

application/vnd.trueapp is a vendor-specific MIME type. It tells the system that the file follows a format defined by a particular application, namely TrueApp.
Files with this MIME type hold data in a proprietary structure. They are meant to be read only by the TrueApp software. For example, a file like TRA uses this MIME type.

Main use: Identifying and processing data files specific to TrueApp.
Key functionality: Ensuring that the file is handled only by the correct software to avoid misinterpretation.
Additional fact: It supports secure data storage and controlled data exchange within the TrueApp environment.

This MIME type helps the operating system and applications know how to open and manage these files. For more on MIME types, see MDN Web Docs.

Associated file extensions

.tra

Usage Examples

HTTP Header

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


    Content-Type: application/vnd.trueapp

HTML

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


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

Associated file extensions

.tra

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.