What is MIME type "application/x-troff"?
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
application/x-troff is a MIME type for documents written in the troff markup language. These files contain plain text mixed with formatting commands that need processing by text layout engines.
This format is used mainly on Unix-like systems. It enables text to be converted into formatted manuals and documentation by tools like roff, nroff, and groff.
- Unix manual pages generated for command-line help and system documentation
- Input for typesetting programs that produce formatted output for printing or terminal display
- Maintaining legacy documentation with rich text formatting instructions
Files associated with this MIME type include those with extensions such as MAN, MS, TR, T, ME, and ROFF.
The MIME type tells compatible applications how to process these files, ensuring that text is properly formatted before display. For more details, see the discussion on troff at Wikipedia.
Associated file extensions
.man, .ms, .tr, .t, .me, .roff
Usage Examples
HTTP Header
When serving content with this MIME type, set the Content-Type header:
Content-Type: application/x-troff
HTML
In HTML, you can specify the MIME type in various elements:
<a href="file.dat" type="application/x-troff">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-troff');
res.end('Content here');
}).listen(3000);
Associated file extensions
.man, .ms, .tr, .t, .me, .roff
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.