Which MIME types are related to file extension ".sxm"?

The .sxm file extension is associated with 10 MIME types:

application/vnd.sun.xml.math, application/vnd.sun.xml.calc, application/vnd.sun.xml.calc.template, application/vnd.sun.xml.draw, application/vnd.sun.xml.draw.template, application/vnd.sun.xml.impress, application/vnd.sun.xml.impress.template, application/vnd.sun.xml.writer, application/vnd.sun.xml.writer.global, application/vnd.sun.xml.writer.template.

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

About .sxm Files

SXM files are math documents created by the OpenOffice.org Math application. They store equations and formulas in a structured XML format.
The primary MIME type is application/vnd.sun.xml.math, which signals that the file follows the OpenOffice.org XML standard for mathematical content.
These files are used mainly in academic, scientific, and technical settings for composing and displaying complex mathematical notations.
They can be opened or edited with applications such as OpenOffice Math or LibreOffice Math.
According to FilExt.com, SXM files belong to a family of XML-based documents developed by OpenOffice.org, although the .sxm extension specifically identifies math files.

While similar XML formats exist for spreadsheets (calc), drawings, presentations, and text documents, the .SXM extension is dedicated to math content.

Relationship between file extension and MIME type

A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.

File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.

File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.

Associated MIME types

application/vnd.sun.xml.math, application/vnd.sun.xml.calc, application/vnd.sun.xml.calc.template, application/vnd.sun.xml.draw, application/vnd.sun.xml.draw.template, application/vnd.sun.xml.impress, application/vnd.sun.xml.impress.template, application/vnd.sun.xml.writer, application/vnd.sun.xml.writer.global, application/vnd.sun.xml.writer.template

FAQs

What software is required to open an .sxm file?

You can open .sxm files using Apache OpenOffice Math or LibreOffice Math. These applications are the modern successors to the original OpenOffice.org suite that created this legacy format.

How do I convert an .sxm file to PDF?

Open the file in LibreOffice Math or OpenOffice, then select File > Export as PDF. This will generate a standard PDF document containing your rendered mathematical formulas.

Is .sxm the same as the .odf format?

No, .sxm is the legacy XML format used by older versions of OpenOffice (StarOffice XML). The modern standard is the OpenDocument Formula format, which typically uses the .odf extension. It is recommended to save files in the newer format for long-term compatibility.

Can Microsoft Word open .sxm files?

Microsoft Word does not natively support the legacy .sxm format. To use the equation in Word, you should open the file in LibreOffice and export it to MathML or copy the rendered image into your Word document.

What is the MIME type for .sxm files?

The specific MIME type for these math documents is application/vnd.sun.xml.math. This identifies the file as a Sun Microsystems XML Math object. You can learn more about this type at mime-type.com.

Can I edit the raw data inside an .sxm file?

Yes, since the file is based on XML, you can open it with a text editor like Notepad++ or Sublime Text. However, this will show the raw code structure rather than the visual mathematical equation.

Why is my computer identifying the file as a 'Sun XML' document?

The .sxm extension belongs to the 'Sun XML' family of formats created by Sun Microsystems for StarOffice (which became OpenOffice). The system associates the extension with the MIME type application/vnd.sun.xml.math.

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 can one extension have multiple MIME types?

Different programs and historical usage may assign various MIME identifiers to the same file format. Listing them together helps maintain compatibility across tools.