# Details of the .mathml file extension

The table below provides useful information about the .mathml file extension. It answers questions such as:

- What is the .
*mathml*file? - What program do I need to open a .
*mathml*file? - How can the .
*mathml*file be opened, edited or printed? - How can I convert .
*mathml*files to another format? - Where can I find the specifications for .
*mathml*? - Which MIME-type is associated with the .
*mathml*extension?

We hope you find this page helpful and a valuable resource!

0 extension(s) and 1 alias(es) found in database

## Mathematical Markup Language Document

*MML*file is a Mathematical Markup Language document. MathML is a W3C markup language for mathematics, it is an application of XML for describing mathematical notations and capturing both its structure and content.

Other types of files may also use the **.mathml** file extension.

## Can't open a .mathml file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

### Table of Contents

- Details of the .mathml file extension
- Mathematical Markup Language Document
- .mathml file converters
- .mathml file related errors

*Windows cannot open this file:
example.mathml
To open this file, Windows needs to know what program you want to use to open it...*

If you don't know how to set the **.mathml** file association, check the FAQ.

## Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the **.mathml file extension**, write to us!