Which MIME types are related to file extension ".r"?
The .r file extension is associated with 3 MIME types:
text/x-rsrc, text/plain, text/x-rebol.
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .r Files
R files are files that store code. They mostly hold R source code used in statistical analysis and data science.
The MIME type text/x-rsrc means the file contains R programming instructions. They run in tools like RStudio, R GUI, or other text editors.
R files can also be simple, plain text files. The MIME type text/plain indicates they may be used as Twist Report scripts. These are basic scripts that help generate or automate report tasks and can be edited in any text editor like Notepad++ or Sublime Text.
Another use is for REBOL scripts. The MIME type text/x-rebol shows that some R files store REBOL code. These files run with REBOL interpreters for automation or configuration tasks in specialized environments.
- R Source Code – Contains R language commands used for statistics and data analysis.
- Twist Report Scripts – Plain text instructions aimed at generating or automating reports.
- REBOL Scripts – Code written in the REBOL language, run by specific interpreters.
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
text/x-rsrc, text/plain, text/x-rebol
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.