I'm not shure that it is a good idea to create (and use) such packages as 'parse-any-structed-file'. If you know what you need, then you can use an optimized implementation.
In my use-case I would like to offer as many structured files formats as possible. But to be sure: you can replace "structured file" with "code syntax" (example: syntax highlighting) or "natural language translation" (example: translation of a cli tool) or "database driver" (example: orm tool).
(In my project that is the exact problem case)