The Share ANE gives you access to the default share menu to send files and information to other applications. You can use one simple line of Actionscript to display the built-in native share dialogs allowing your user to share files and content with other applications.
For example, your user could use this to:
Additionally this ANE now has the ability to launch other applications on the user’s device allowing you to deeply integrate with other applications. You can pass detailed extras to an explicit Intent on Android allowing amazing integration with other applications, launching specific views in other applications or sending detailed information for another application to use within an activity.
This Wiki forms the best source of detailed documentation for the extension along with the asdocs.