Which MIME types are related to file extension ".scm"?
The .scm file extension is associated with 4 MIME types:
text/x-scheme, application/vnd.lotus-screencam, application/octet-stream, application/x-scheme.
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .scm Files
SCM files are used for different purposes based on their MIME type.
They can contain Scheme source code or scripts (MIME types text/x-scheme and application/x-scheme). Such files hold code written in the Scheme programming language. They are used by developers and can be opened with text editors like Notepad++, Visual Studio Code, or specialized Scheme IDEs.
They can also be Lotus Screencam data files (MIME type application/vnd.lotus-screencam). In this case, the files store screen recording data compatible with Lotus Screencam versions 3.0–3.1.
In another instance, SCM files may store a Samsung TV channels list (MIME type application/octet-stream). These files contain binary data used by Samsung TV systems and are not typically human-readable.
- Scheme Source Code/Script: Contains Scheme language code for programs and scripts.
- Lotus Screencam Data: Holds screen capture data for Lotus Screencam software.
- Samsung TV Channels List: Stores binary channel list data for Samsung TVs.
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-scheme, application/vnd.lotus-screencam, application/octet-stream, application/x-scheme
FAQs
How do I open an .scm file?
The method depends on the file's actual format. If it is Scheme source code, you can open it with text editors like Notepad++ or Visual Studio Code. If it is a Samsung TV channel list, you need a channel editor like ChanSort. For legacy Lotus ScreenCam recordings, you would need the specific Lotus software.
What is an .scm file in programming?
In programming, an .scm file contains source code written in Scheme, which is a dialect of the Lisp programming language. These are plain text files often served with the MIME type text/x-scheme or application/x-scheme. They are commonly used for scripting, such as in the GIMP image editor (Script-Fu).
How can I edit a Samsung TV channel list (.scm)?
Samsung TV channel lists saved as .scm files contain binary data (MIME type application/octet-stream) and cannot be edited with a text editor. You must use specialized third-party software like SamToolBox or ChanSort to reorder or rename channels before loading the file back onto your TV via USB.
Why can't I play my .scm video file?
If your file is a video, it is likely a Lotus ScreenCam recording (MIME type application/vnd.lotus-screencam). This is an obsolete format from the 1990s. Modern media players like VLC do not support it, so you may need to run the original Lotus software in a virtual machine to view it.
How do I install .scm scripts in GIMP?
GIMP uses Scheme for its Script-Fu automation tools. To install an .scm script, copy the file into your GIMP scripts folder (usually ...\share\gimp\2.0\scripts) and restart GIMP. You can then access the new functionality through the Filters or Script-Fu menu.
Are .scm files safe to open?
Text-based Scheme files are generally safe to view in a text editor, though running unknown scripts can be a security risk. However, binary .scm files (like Samsung channel lists) should only be opened in trusted applications designed for them to avoid corruption or execution errors.
What is the correct MIME type for .scm files?
The MIME type depends on the content. Use text/x-scheme for Scheme source code, application/vnd.lotus-screencam for Lotus recordings, and application/octet-stream for generic binary data like Samsung channel lists.
General 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.