This stack generates downloadable .ics calendar files on your webpages. It makes it easy and convenient for your website users to download and bookmark forthcoming events in their preferred calendar software (e.g. Outlook, iCal, Sunbird or Lightning). This stack saves the time and hassle of needing to export and upload .ics files yourself. AddEvent has the added bonus of being totally self-contained, meaning that it has no dependencies on any outside services for event sharing or tracking.