Open other file extensions in org mode

Question

How can I make Emacs open other file extensions than .org with the Emacs org mode? I have an editor on the iPad that is not able to handle .org files, so I'd like to use e.g. .text with org mode.

Answer 1

This might be a duplicate, but the answer is easy enough:

(add-to-list 'auto-mode-alist '("\\.text\\'" . org-mode))

Answer 2

Add the following line at the beginning of your .text file:

#    -*- mode: org -*-

You can also use this for .org_archive files

I know this question is old, but I think it is slightly easier and works, as far as I know, for all text-like files.