The capability to validate and view or play binary file formats. as well as to convert binary file formats to standard or current file formats. is critically important to the preservation of digital data and records. This paper describes the extension of context-free grammars from strings to binary files. https://www.soiebiologique.com/quick-sale-Axol-Friends-Mel-Axol-the-Axolotl-Black-Purple-special-save/