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I Googled a bit to see if anyone had come up with an easy solution to this problem. Second, the UI for mapping Thunderbird address-book fields to columns in the Outlook-generated CSV is confusing and difficult to use. First of all, Thunderbird will only read 35 columns from the Outlook CSV file, so some of the Outlook data is inaccessible.
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This is theoretically possible, since Thunderbird does know how to import a CSV file, but it’s difficult, for two reasons. In that case, you need to export your Outlook data into a CSV file, copy the resulting file over to UNIX, and import it into Thunderbird there. However, it’s more difficult when you want to export from Outlook on Windows and import the data into Thunderbird on UNIX. It’s easy to import from Outlook to Thunderbird on Windows, since Thunderbird will happily allow you to do the import directly.
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I keep my primary address book in Outlook, but I wanted to export it to Thunderbird so that when I’m using Thunderbird at home, I have easy access to all the email addresses I’ve stored in Outlook.
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