I've a big problem: I've to export MS Outlook 2010 tasks and import them into Thunderbird.
I tried with the simple solution: export a CSV file with tasks but Thunderbird doesn't import anything. I tried a lot of softwares, like FreeMiCal, PIMescape, outlook2icalv but none of this softwares solve my problem. None of them can create a file that Thunderbird can import. I tried to convert the CSV file into a ICS file but even this solution didn't work.
I have no problem with calendars.
Any suggestion? Thanks