Which MIME types are related to file extension ".bnk"?
The .bnk file extension is associated with 2 MIME types:
application/octet-stream, application/vnd.wwise.bnk.
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .bnk Files
BNK files are binary containers used in gaming and interactive media.
They store raw data that is not human-readable and require dedicated software to access.
- Game Data Archive: Often used as a bank game data archive. This version uses the MIME type application/octet-stream to indicate generic binary data that may include game assets, settings, or compiled resources.
- Wwise Sound Bank: Created by the Wwise audio engine, this file holds sound assets, events, and audio parameters. It is labeled with the MIME type application/vnd.wwise.bnk and is essential for dynamic audio in video games.
Based on information from FilExt.com.
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, application/vnd.wwise.bnk
FAQs
What is a .bnk file?
A .bnk file is primarily a container used in video games to store audio assets, known as a Wwise Sound Bank. It contains sound effects, music, and voice lines packaged for the game engine to read efficiently. Occasionally, it may also be a generic game data archive.
How can I play the audio inside a .bnk file?
You cannot play .bnk files directly in standard media players like VLC or Windows Media Player. You must first extract the audio data using tools like Ravioli Game Tools or bnkextr, which will usually output .wem or .wav files that can then be played.
How do I convert .bnk files to MP3 or WAV?
Conversion is a two-step process: extract and then convert. Use a tool like QuickBMS with a specific script to unpack the .bnk file, then convert the resulting .wem files to MP3/WAV using foobar2000 with the vgmstream component installed.
What program opens .bnk files?
For development, these files are opened and managed by Audiokinetic Wwise. For gamers and modders, third-party utilities such as Dragon UnPACKer or Ravioli Explorer are used to view and extract the internal contents.
Is it safe to delete .bnk files from my game folder?
No, you should not delete .bnk files found in a game's installation directory. These contain critical game data, such as sound effects and dialogue; removing them will likely cause the game to crash or run without audio.
What is the correct MIME type for .bnk files?
When associated specifically with the Wwise audio engine, the correct MIME type is application/vnd.wwise.bnk. However, because they are binary containers, they are often detected generically as application/octet-stream by web servers and operating systems.
Why can't I edit a .bnk file in a text editor?
The .bnk format is a binary file, meaning it contains compiled computer code and media data, not human-readable text. Opening it in Notepad will only show garbled characters; you need a hex editor or specific modding tools to modify the binary structure.
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.