localStorage(HTML5) w jQ plugin and local access

localStorage(HTML5) w jQ plugin and local access

For a calendar project implemented with pure HTML/CSS/JS I need to access local data files (.ICS). These ICS/iCal data has to be accessed also by other applications (eg. sync, backup, etc).

Can anyone point to a possible solution to use HTML5 compatible calls (or jQ plugin) AND how to access the localStorage files also from the other apps.