Android: Is there a reader for .hpprgm text files

[StephenG1CMZ]

I recall old Android's (Android 3?) that, upon encountering an unknown filetype, would allow the user to select from a list of programs to open it with.

Androids 4, 5 and 6 don't seem so advanced, and just say "unsupported filetype".

That is particularly awkward for the many text filetypes that exist: Such as .py or .hpprgm (or is it .pgrm?).

For most people, the solution is probably to ditch Android in favour of a PC, which has been able to read such text files without gaps since the 1980s.
An alternative would be to rename filetypes, but that may require a 3rd party file manager.

However, it would be convenient if a reader were written for the Android...It shouldn't be too difficult to wrap a few lines of Java declaring an intent to open a .hpprgm around an existing reader for .txt.