What is MIME type "application/x-vnd.sun.xml.writer"?

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

application/x-vnd.sun.xml.writer labels a specific XML-based format for text documents created with OpenOffice Writer.
It embeds document data, formatting, and structure so that systems and applications know how to process and display the content correctly.

Document Creation: Used as the native format in early OpenOffice Writer versions to save rich text documents.
File Identification: Allows operating systems and browsers to recognize the file type for correct application association.
Legacy Compatibility: Maintains support for older documents while facilitating conversion to newer formats.

A prime example of this MIME type is shown by files like SXW.
This format uses XML to store text and metadata, making files more accessible and easier to transfer between different systems.
For further details on related file types, visit File Extension Database.

Associated file extensions

.sxw

Usage Examples

HTTP Header

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


    Content-Type: application/x-vnd.sun.xml.writer

HTML

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


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

Associated file extensions

.sxw

FAQs

What kind of file uses the MIME type application/x-vnd.sun.xml.writer?

This MIME type is specifically associated with legacy OpenOffice.org 1.0 text documents, usually found with the .sxw extension. It was the default format for OpenOffice Writer before the standardized OpenDocument Format (ODT) was adopted.

How do I open a file sent with this MIME type?

You can open .sxw files using modern office suites like Apache OpenOffice or LibreOffice. These applications maintain backward compatibility and can usually convert the file into a modern format like .odt or .docx.

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

To ensure browsers handle the file as a downloadable document rather than plain XML, add the following line to your .htaccess file or server configuration: AddType application/x-vnd.sun.xml.writer .sxw.

Can web browsers display application/x-vnd.sun.xml.writer files directly?

No, standard web browsers like Chrome, Firefox, and Edge cannot natively render this OpenOffice format. When a server sends this MIME type, the browser will typically prompt the user to download the file to their computer.

What is the difference between this type and application/vnd.oasis.opendocument.text?

application/x-vnd.sun.xml.writer is the older, vendor-specific format used by Sun Microsystems' StarOffice and early OpenOffice versions. In contrast, application/vnd.oasis.opendocument.text refers to the newer, ISO-standardized OpenDocument Text (.odt) format used today.

Is it safe to open files with the application/x-vnd.sun.xml.writer content type?

While generally safer than binary formats, these XML-based documents can still contain macros. It is recommended to disable macros when opening files from untrusted sources or to scan them with antivirus software before opening.

How should Nginx be configured for this MIME type?

In your nginx.conf or the mime.types file included by Nginx, ensure the mapping exists: application/x-vnd.sun.xml.writer sxw;. This ensures the server sends the correct Content-Type header to the client.

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.