A kni file extension is associated with the Klango Player and used for its data files.
KNI file extension - Klango Player data
What is kni file? How to open kni files?
File type specification:
The kni file extension is related to the Klango Player, a software for Microsoft Windows operating system.
The kni file contains some kind of data.
Most likely some old format without support. No further information could be found.
This kni 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.