Files with wbnk file extension can be found as audio instrument files from Music Composer program for old Mac computers.
WBNK file extension - Music Composer instruments
What is wbnk file? How to open wbnk files?
File type specification:
The wbnk file extension is related to a very old audio instruments format that was used in Music Composer, a Mac program that was used in early 90s on early Macintosh computers. Very old and no longer used file type.
This wbnk file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.