Import .ics calendar file into Thunderbird on Windows


  1. Click on the three vertical lines, then select Tools, then Import.

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  2. Choose the Import from a file option and click on the Continue button.



  3. Choose Import Calendars, then click the Continue button.
  4. Browse to find the file and click Open. Then click Continue.
  5. Click Continue to choose where to import the calendar.
  6. Click the Start Import button to finalize the import, or the Back button to perform changes.
  7. Click Finish.