Which MIME types are related to file extension ".nfo"?
The .nfo 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 .nfo Files
NFO files are plain text files that deliver key information about system configurations and digital releases.
They appear in two MIME types: one as text/xml for Microsoft System Information outputs and the other as text/x-nfo for traditional release notes and credits.
Most NFO files use simple text or ASCII art to display details and instructions.
They are meant for human reading and can be opened with basic text editors like Notepad or advanced ones like Notepad++.
- System Reporting: When produced by Windows tools, NFO files (text/xml) contain detailed system configuration information.
- Digital Releases: In the warez scene, text/x-nfo files include release notes, instructions, and group credits with stylized text and ASCII art.
- Documentation: They serve as readme files that explain the contents or usage of a digital product.
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
FAQs
Why do I get an error saying 'System Information cannot open this file'?
This error occurs because Windows defaults to opening .nfo files with the System Information tool, expecting an XML format. If your file is a text-based release note (MIME type text/x-nfo), you must right-click the file and choose Open with > Notepad or another text editor.
How can I view the ASCII art in an NFO file correctly?
Standard editors like Notepad may distort ASCII art if the font is not monospaced. To view the art as intended, use a specialized tool like DAMN NFO Viewer or Notepad++, or change your editor's font to Terminal or Courier New.
What is the difference between the two types of NFO files?
One type is generated by Microsoft's System Information tool and contains XML data describing your PC's hardware. The other type is a plain text file often included with digital releases, containing release notes and ASCII art. They share the extension but use different structures.
What are the MIME types associated with NFO files?
System Information files generally correspond to text/xml, while text-based release notes use text/x-nfo. For more details on configuring these types on a server, you can check mime-type.com.
Are NFO files dangerous to open?
Genuine .nfo files are plain text or XML and cannot execute code, making them safe to view. However, you should always verify that a file is not an executable disguised with a double extension, such as setup.nfo.exe.
How do I open NFO files on macOS or Linux?
On macOS and Linux, .nfo files are treated as standard text files. You can open them with default editors like TextEdit or Gedit, though you may need to adjust the character encoding or font to view ASCII art correctly.
Can I convert a System Information NFO file to a text file?
Yes, if you have a System Information .nfo file, you can open it in the System Information utility (msinfo32) and select File > Export to save the report as a standard .txt file.
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.