This is a great monthly widget. Import/export doesn't really backup the categories or their settings. It imported some data but changed the times  off by an hour. First Monday of every month is No Parking on my side of the street because of the street cleaner. Hefty $50 fine if you are parked there from 8am to 2pm. The import changed all the times to 7am to 1pm on all my events. Not very reliable as a real calendar but makes a great looking widget. If your events mean anything to you  use a real calendar app like ColorNotes. I won't comment or rate this anymore until it can actually backup and restore the entire database. Until then  it's just a pretty widget.
April 18 2017