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How do I convert Adress books to CSV files

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I need to copy the e-mail addresses in a Thunderbird address book to Mail Chimp in CSV format

I need to copy the e-mail addresses in a Thunderbird address book to Mail Chimp in CSV format

Chosen solution

Open the address book window and select Tools-Export. Select the comma separated value. .CSV for file type.

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Chosen Solution

Open the address book window and select Tools-Export. Select the comma separated value. .CSV for file type.

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Great, Many thanks for a ptrompt reply