- Open Thunderbird
- Click on 'Events and Tasks'
- Use the 'Export' command to open a selection dialog
- Select the calendar you want to export and click 'OK'
- Specify the filename of the exported calendar and where the exported calendar will be stored.
Tip: Use the little arrow at the right of the name field to select the appropriate file location.
- Select iCalendar as the format to save in
- Click on the SAVE button