Do We Need New File Types?

We don't actually care if it's dot pi or dot t x t or dot ph b. We care about what the serve sent back and with what content type headder like, for example, with a dot pi file or a p h b that's incredibly popular serverside programming language. So we can tell that we can index is, but not that. And are these things things that we'd want to index in the context of that page, similar to images? Or it depends on if it's something that stands. If just an image comes back with just a content image dot jpe, then we probably don't want to index that image in particular,. unless it's embedded into