KOrganizer is the first free PIM for UNIX® which implements the vCalendar protocol for personal data interchange. This vendor-independent, open standard allows different programs and devices to share/synchronize event and calendar information without proprietary standards. The data is stored in ASCII and is easily human-readable. While some Windows® programs have implemented a limited import/export ability from their native formats to vCalendar, KOrganizer's native file format on disk is vCalendar, so it bypasses this middle-step entirely. It also allows you to easily access your data without the program itself, in the spirit of other UNIX® programs.