I spent the day Googling how to import my Lotus Notes calendar into Thunderbird's calendar add-on (Lightning). While there were many pleas for help, no love, no solution.
I tried what seemed like an easy fix, exporting an ics file from Lotus Notes and then importing into Lightning. Unfortunately, this doesn't work. I think that the interpreter in Lightning can't handle the particular way Notes interprets the ics standard.
Anyway, by trial and error, I came up with the following solution to import a Lotus calendar into Lightning. It doesn't require any software downloads, and it can be done in three easy steps.
- At work Lotus Notes (I'm using version 7), go to the Lotus Calendar. Then, choose File: Export: ICS: File name: LotusNotesCalendar.ics (or whatever file name you like)
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At work, login to your Google account and go to the Google Calendar. Then, click on the left gray box: Add: Import Calendar: LotusNotesCalendar.ics (the file you just created).
Note your Private Google Calendar Address (from triangle next to your calendar): Calendar Settings: Private Address: Green ICAL button. From Thunderbird (at home or elsewhere), open the Lightning Calendar. Go to File: Import Calendar: Enter the full web address of your Google Private Calendar. Done!