Which MIME types are related to file extension ".fbi"?
The .fbi file extension is associated with 2 MIME types:
text/plain, application/octet-stream.
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .fbi Files
FBI files are used in two different ways depending on their MIME type.
When the MIME type is text/plain, these files store Spring Engine unit info. They contain plain text data that game developers use to define unit characteristics. You can open and edit these files with any basic text editor like Notepad or Sublime Text.
When the MIME type is application/octet-stream, FBI files represent a FLIP Bitmap. This form stores binary data for bitmap images that may require specialized image software or dedicated converters to view or edit.
- Spring Engine Unit Info – Plain text files with game unit data; editable with any text editor.
- FLIP Bitmap – Binary image files using a custom bitmap format; need special software to process.
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/plain, application/octet-stream
FAQs
What is an .fbi file used for?
An .fbi file typically serves one of two specific purposes: it is either a configuration file for the Spring Engine RTS game engine or a FLIP Bitmap image. The Spring Engine version contains plain text defining game unit statistics, while the FLIP version contains binary image data.
How do I open an .fbi file created for the Spring Engine?
Since Spring Engine Unit Info files are essentially plain text, you can open them with any standard text editor. Tools like Microsoft Notepad, Apple TextEdit, or Notepad++ will allow you to view and modify the unit definitions easily.
Why do I see random symbols when opening an .fbi file in Notepad?
If you see scrambled characters or "garbage" text, you are likely trying to open a FLIP Bitmap file in a text editor. These files contain binary data (often identified as application/octet-stream) which text editors cannot interpret correctly; you need an image viewer compatible with the FLIP format instead.
Can I convert an .fbi file to a standard image like PNG?
Yes, but only if the file is a FLIP Bitmap. You will need a specialized file converter or legacy graphics software to translate the binary .fbi data into a common format like PNG or JPG. You cannot convert the Spring Engine text-based .fbi files into images.
What is the MIME type for .fbi files?
The MIME type changes based on the file's actual format. Spring Engine files use the standard text/plain type because they are readable text, whereas FLIP Bitmaps often use the generic application/octet-stream type to denote binary data.
Is the .fbi file extension related to the government agency?
No, the file extension is unrelated to the Federal Bureau of Investigation. In the context of the Spring Engine, it stands for Fast Built-in (referring to unit definitions), and for FLIP Bitmaps, it refers to the file structure. These files are standard computer data files.
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.