Nerd Editor is the best of the simple file editors you can find for your phone. It can be used to create new files or edit existing files with little or no hustle. It has an in-built data recovery mechanism so that loosing data while you are editing a new file (or existing one) is impossible, even if the app closes, crashes or you restart the phone. It shows line numbers as you edit, and comes with a clean, uncluttered interface to help you focus while you write.

Made from Nuchwezi ICT Research Labs, for you <3. Feedback and suggestions welcome. Please rate the app!