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

The .rgb file extension is associated with 6 MIME types:

image/x-rgb, application/octet-stream, image/sgi, image/x-sgi, image/x-sgi-bw, image/x-sgi-rgb.

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

About .rgb Files

RGB files are used for Silicon Graphics bitmap images. They contain raster image data native to SGI workstations.
This format has multiple MIME types:

image/x-rgb: The traditional Silicon Graphics RGB Bitmap.
application/octet-stream: Used for the ColorViewSquash bitmap.
image/sgi, image/x-sgi, image/x-sgi-bw, image/x-sgi-rgb: Variants of the Silicon Graphics Image format supporting color, black-and-white, or specific channel layouts.

RGB files support high-quality images often used in graphics work and professional imaging applications.
They are commonly opened and edited in software like IrfanView, XnView, and specialized SGI tools on Linux systems.
Based on information from FilExt.com, this format is valued by professionals for its precise color management and legacy use in Silicon Graphics products.

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

image/x-rgb, application/octet-stream, image/sgi, image/x-sgi, image/x-sgi-bw, image/x-sgi-rgb

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.