Which MIME types are related to file extension ".mm"?
The .mm file extension is associated with 7 MIME types:
application/freemind, application/x-freemind, text/x-objcsrc, text/x-objectivec, text/xml, application/octet-stream, text/x-objective-c++.
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .mm Files
MM files are versatile and can serve multiple purposes. They may hold mind-mapping data, source code, structured XML, or even financial records.
- FreeMind Mind Maps: These files use the MIME types application/freemind and application/x-freemind and store hierarchical data in an XML format. They are ideal for brainstorming and planning, and you can open them with FreeMind or similar mind-mapping software.
- Objective-C++ Source Code: When used in development, .MM files are often text files marked by the MIME types text/x-objcsrc, text/x-objectivec, or text/x-objective-c++. Developers typically edit these files in an IDE like Xcode, especially when mixing Objective-C with C++ code.
- XML Documents: Some .MM files adopt the text/xml MIME type, indicating they contain structured XML data that can be edited with simple text or XML editors.
- Money Matters Data: A few .MM files are associated with the application/octet-stream MIME type. These serve as data files for Money Matters (v4), a financial or accounting application.
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/freemind, application/x-freemind, text/x-objcsrc, text/x-objectivec, text/xml, application/octet-stream, text/x-objective-c++
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.