Importing Calendar From Microsoft Outlook To Mozilla Lightning

A question came up today if it was possible to export a Calendar from Microsoft Outlook and import it to Mozilla Lightning. Mozilla Lightning can be integrated in the email client Thunderbird. There are basically two ways to import the Microsoft Outlook Calendar into Mozilla Lightning.
The manual way would be to export the Calendar files from Microsoft Outlook as comma separated values (csv) and import them to Mozilla Lightning. To do that open Microsoft Outlook and select File > Import and Export from the top menu.
The Import and Export Wizard will show up offering choices to import data into Microsoft Outlook and export data into files as well. Pick the Export To A File entry from the selection.
The Export To A File menu shows up which offers to export data into various file types. Select the Comma Separated Values (Windows) entry from the available choices.
After making that selection it is time to select the data that should be exported. Pick the Calendar entry from the available data sources.
Select a file name for the calendar export, pick the data range that you want to export and save it to the computer's hard drive. Now that the exported data is available it is time to import it into Mozilla Lightning.
Make sure that the Mozilla Lightning extension for the email client Thunderbird has already been installed. Start Mozilla Thunderbird afterwards and click on the Calendar button in the lower left corner of the application's window. It is possible to use the shortcut [CTRL 3] to go to the calendar as well.
Lightning supports Calendar imports from csv and ics files. Pick the csv filter in the file browser and navigate to the hard drive folder that contains the Microsoft Outlook Calendar export. A click on that file will load the calendar in Mozilla Lightning and make the calendar available there.
The Open Source tool Outpost provides an elegant alternative. It has not been updated in the last years but is still able to export Outlook data. It can be used to export Outlook Calendar data in an ics file which can then be imported into Mozilla Lightning or any other application that supports the format.
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You said that Outlook isn’t your main email client, so which is your main one?
I think its thunderbird
It is Mozilla Thunderbird.
Awesome! This actually solved my problem… what a stupid bug.
If this is the same bug that I’ve encountered, there may be another fix: (1) hover over open Outlook item in Taskbar, cursor up to hover over Outlook window item, and right-click; (2) this should give you Restore / Move / Size / Minimize / Maximize — choose Move or Size; (3) use your cursor keys, going arbitrarily N/S/E/W, to try to move or size the Outlook window back into view. Basically, the app behaves as though it were open in a 0x0 window, or at a location that’s offscreen, and this will frequently work to resize and/or move the window. Don’t forget to close while resized/moved, so that Outlook remembers the size/position for next time.
THANK YOU Claude!!! I could get the main window to launch but could not get any other message window to show on the desktop. You are my hero!!!!
Solved my issue! 6 years later and this is still problem…
Fantastic. Thank you. Size did the trick.
This solved my Outlook problem, too. Thank you. :)
Thank you so much, this started happening to me today and was causing big problems. You are a life saver, I hope I can help you in some way some day.
You are a god – thank you!
thanks a lot…. work like charm.. :-)
Yah…thanks Claude. I’ve been having the same problem and tried all the suggestions…your solution was the answer. It had resized itself to a 0/0 box. Cheers
Excellent post. This had me baffled even trying to accurately describe the problem. This fixed it for me.
Thank you
Thanks a lot for the article. Don’t know why it happenend, don’t know how it got fixed, but it was really annoying and now it works :-)
Thanks a lot. I was facing this issue from past 3 week. I tried everything but no resolution. The issue was happening intermittently and mainly when I was changing the display of screen ( as i use 2 monitors). The only option i had was to do system restore. But thanks to you.
I’ve been tried to sole this problem for 12hours. Your comment about changing the display of screen helped me a lot!! Thanks!!
Thank you…don’t know why this happened but your instructions helped me fix it. Running Windows 10 and office pro 2007
Great tip! Thanks!
Worked for me, too – thank you!!!
It’s Worked for me, too
thank you very much!
I had a similar issue with Outlook 2013 on Windows 10 and this helped me to fix it. Thank you very much!
Thank you so much. Solved!
Considering you published this in 2012, incredible not been debugged by Microsoft.
Thank you again. M
This problem was faced by only one user logging to TS 2008 r2 using outlook 2010.The issue was resolved.
Thanks.
Great tip. Thank you!!!! If it helps, I had to use the Control Key and the arrow keys at the same time to bring my window back into view. Worked like a charm.
Thank you, this worked !!!!
Man, you are a fucking god. Thanks a lot, what an annoying bug!!
Awesome, this post solved the issue. Many thanks!