You should remove expired events from the calendar after the month in which they occurred has ended. This will keep the maintenance of the calendar much easier. To delete events from the WebCal data files follow these steps below.
From your Admin Panel select the "Erase Events" or "Delete Events" link from the WebCal Calendar Maintenance section.
Next choose the data file that contains the event(s) you wish to delete.
After selecting the data file you will see a list of events. Check the box on any or all of the events you wish to delete from the calendar. If you included a description or an URL you can view these before deleting the event. That way you can make sure you are deleting the correct event. If you do not see the event you wish to delete you can select a different data file by selecting the "Change Data File" button.
If you don't have any events in the data file you will see the below message. If the item is still on the calendar make sure you check other data files for the event you wish to remove. You can change data files by selecting the "Change Data File" button. This will take you back to the "Select Data File" screen.