These files are used for the small calendar that you would place within the main template of a page, rather than just on /calendar.

Published 12:00 am Wednesday, July 2, 2008

Often times, its found on a site’s front page, which is why the folder is called /frontpage. You can name the folder whatever you want, just make sure a respectively named folder exists in /newsys_datafeeds.

The token used to display a small calendar using these settings would be [calendar:1:frontpage]