How to Import the Outlook Calendar Using Thunderbird

Written by joshua laud
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How to Import the Outlook Calendar Using Thunderbird
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Switching e-mail and productivity clients such as Outlook to Thunderbird can seem a daunting and lengthy task especially when configuring the extras such as calendaring functionality, but the process is much simpler than you imagine. If you want to import an Outlook Calendar into Thunderbird then you need the Lightning extension for Thunderbird. Thunderbird, like Mozilla's Firefox, is based on extra plugins and extras so that the initial application is as stripped-down as possible. Lightning is required to add calendar functionality to Thunderbird.

Skill level:


  1. 1

    Navigate to the Lightning project website. Download Lightning then double-click the download to begin set-up. Follow the onscreen instructions to fully install the add-on.

  2. 2

    Open Microsoft Outlook, then click "Calendar."

  3. 3

    Click "File," then "Import and Export." Click "Export to a File," then click "Comma Separated Values (Windows)," then click "Next." Click "Calendar," then "Next."

  4. 4

    Designate a save location for the CSV file and click "Save."

  5. 5

    Open Mozilla Thunderbird now that Lightning has been installed, then click "Calendar" in the bottom left corner of the program. Click "File," then "Import Calendar." Navigate to the CSV file and double-click it. Thunderbird will now import the Outlook calendar.

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