What is MIME type "text/x-tre"?

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

The MIME type text/x-tre is a non-standard format. It is used by the SequoiaView application to represent directory tree data in plain text.

Files of this type contain a hierarchical layout of folders and files. They may include metadata like folder sizes to help with disk space analysis. The "x-" prefix marks it as experimental, meaning it is not officially registered by IANA.

Stores a directory tree structure in a text format
Helps visualize folder organization and disk usage
Can be easily opened and edited with text editors
Facilitates data import/export within the SequoiaView ecosystem

Files using this MIME type are usually saved with the extension TRE.

For more details on this format or similar file types, you can explore resources on file extension information sites.

Associated file extensions

.tre

Usage Examples

HTTP Header

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


    Content-Type: text/x-tre

HTML

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


    <a href="file.dat" type="text/x-tre">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', 'text/x-tre');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.tre

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.