Which MIME types are related to file extension ".rsrc"?
The .rsrc file extension is associated with 1 MIME types:
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .rsrc Files
RSRC files are part of the Mac OS file structure. They store the resource fork separate from the main data fork.
They use the MIME type multipart/appledouble. This means the file is packaged in an AppleDouble format that splits a file’s content into two parts: one for data and one for resources.
- Primary purpose: Hold metadata like icons, menus, and GUI elements for applications.
- Additional use: Preserve legacy Mac OS file structure when moving files to non-Mac systems.
- Technical note: Works with the AppleDouble standard to maintain file integrity during transfers.
RSRC files can be managed by Mac-based resource editors (e.g., ResEdit) or specialized tools on Windows that recognize AppleDouble formatting. According to FilExt.com, these files are essential for keeping the extra, non-visible data required by older Mac applications intact.
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
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.