A bnf file extension is associated with the Backus–Naur and used for its form files.

There is one other file type using
the BNF file extension!

empty icon.bnf - IBM Voice Type languages map data

Detailed description

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BNF file extension - Backus–Naur form

What is bnf file? How to open bnf files?

File type specification:

Document file type icon Document file type

The bnf file extension is related to the Backus–Naur, a notation techniques for context-free grammars, also used to describe the syntax of computing languages.

The bnf file stores form written in Backus–Naur.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .bnf file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

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