The todo.txt file is simply a plain text file that follows a specification created by Gina Trapani and used in applications published by the Todo.txt Community. The todo.txt file is both human and machine readable by following a few simple rules. You can find more information including the specifications here.

Filters are created automatically by special text identified in the tasks you create. The two kinds of text it looks for are projects and contexts.

Project:  Denoted by prefixing some text with "+"
Context:  Denoted by prefixing some text with "@"

So for example the task "Contact Tom by @email to discuss the new +program" results in "@email" and "+program" added to the filter list.

Local sandbox:  The todo.txt file is located within the application sandbox storage space and is only accessible to this app. This is the default location when you start the app for the first time and the best option if you do not need or want your file accessible from any other application or process.
Local shared:  The todo.txt file is located within the shared application storage space in "Shared/misc/todo". This location is accessible from any other application.

You can export the todo.txt and done.txt files from your local sandbox by opening the "Settings" page in the pull down menu at the top of the screen and pressing the "Export sandbox files". From there you will be prompted to select an accessible location.

Dropbox support has been temporarily removed from this open source edition. I plan to rework a large portion of the sync code and re-introduce it along with support for other cloud providers soon.

For any feedback or questions you can send me email or visit us at monkeystew.org