What is MIME type "application/x-texinfo"?

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

application/x-texinfo is a MIME type for files written in the Texinfo markup language. Texinfo helps produce both online and printed manuals with one coherent source. It is not a standard Internet MIME type, but it is common in systems that build documentation.

Creates technical documentation for software and projects.
Generates Info pages, HTML documents, and printed manuals from a single source file.
Uses simple commands to structure content, create cross-references, and format text automatically.
Works with tools like GNU Texinfo to compile various documentation formats.

This MIME type is associated with files like TEXI and TEXINFO. These plain text files include Texinfo commands that the tools read and convert into user-friendly manuals.

For more details on Texinfo’s capabilities and its tools, visit the official GNU Texinfo page.

Associated file extensions

.texi, .texinfo

Usage Examples

HTTP Header

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


    Content-Type: application/x-texinfo

HTML

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


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

Associated file extensions

.texi, .texinfo

FAQs

What is the application/x-texinfo MIME type used for?

The MIME type application/x-texinfo represents source documentation files written in the Texinfo markup language. These files, usually ending in .texi or .texinfo, allow developers to maintain a single source document that can be compiled into multiple formats, including HTML, PDF, and standard GNU Info pages.

How do I open a file with the application/x-texinfo type?

Since Texinfo files are stored as plain text, you can view and edit them using any standard text editor like Notepad, Vim, or Emacs. To view the final formatted documentation, however, you must compile the source file using the GNU Texinfo tools (such as makeinfo) into a readable format like HTML or PDF.

How do I configure Apache to serve .texi files correctly?

To ensure your Apache web server sends the correct MIME header for Texinfo files, add the following directive to your .htaccess file or main configuration: AddType application/x-texinfo .texi .texinfo. This helps client applications identify the file type immediately.

Can web browsers render application/x-texinfo files directly?

No, most modern web browsers do not natively render Texinfo markup. If a browser encounters application/x-texinfo, it will typically treat the file as plain text or prompt the user to download it. To display the content online, the file should first be converted to HTML.

What is the difference between .texi and .tex files?

While both file types relate to the TeX typesetting system, .texi files are specific to Texinfo, a documentation system designed for generating both online and printed manuals. In contrast, .tex files are generally associated with LaTeX or raw TeX, which are used primarily for scientific typesetting and do not support the multi-format output features of Texinfo.

How do I add support for this MIME type in Nginx?

For Nginx servers, you can register the MIME type by editing your mime.types file or adding a types block within your server configuration: types { application/x-texinfo texi texinfo; }. Remember to reload Nginx for the changes to take effect.

Why does the MIME type start with 'x-'?

The x- prefix indicates that application/x-texinfo is a non-standard or experimental type that is not officially registered with the IANA. Despite this, it is the de facto standard used by systems and servers that handle GNU documentation source files.

General 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.