Create ICS File for Export

Backup

1. In Week Calendar go to Calendars and select only the calendar(s) you want to export
2. Now, press Tools > Share & Print
3. Press Export Select the period you want Press Export
4. Email the file to yourself

Please note so called "rolling" events cannot be exported to an ICS file.

Restore

1. Open the email you sent to yourself
2. Click on the ICS file
3. You'll be asked to select a calendar to import events in