.AO

.AO file extension

This is the basic program to work with .AO extension

ActionOutline

ActionOutline ActionOutline Document

ActionOutline is your all-in-one solution for keeping track of notes, ideas, todo lists and any other kind of free-form information. ActionOutline is designed to store and arrange all your information in a tree outline form. Explorer-like interface and powerful keyboard shortcuts make ActionOutline easy to learn and use... (more)

The program works with the following extensions: ao, ~a