Mime type for .txt files?

You can try the specific mime:

text/plain

or, the more general text mime:

text/*

---

simple and complete example code (less than 50 lines) for app that android will present to the user along with menu list of compatible apps (polaris, browser, etc) when opening a TXT file.

disclaimer: in case user hasnt previously determined a default app

note; TXT may be changed, you can customize your extensions, if you generate the files that your app consumes.

---