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

The .is file extension is associated with 2 MIME types:

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

About .is Files

IS files are specialized binary files used in music tracking applications.
They appear in two forms based on their MIME types. One type, application/octet-stream, identifies these files as a Trilo Tracker Instrument Set used to store instrument parameters and sample data. The other type, audio/x-mod, marks them as a Sound Invasion Music System module containing audio patterns and playback instructions.

Trilo Tracker Instrument Set: Used within tracker software to manage instrument libraries for music composition.
Sound Invasion Music System module: Functions as an audio module that can be played by compatible module players and audio editing apps.

These files may be opened or edited with programs that support tracker formats. According to FilExt.com, the purpose and functionality depend on the system and software in use, each serving a specific role in digital music production.
Software like Trilo Tracker or compatible module players can open these files, allowing users to work with detailed instrument data or module-based audio content.

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/octet-stream, audio/x-mod

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.