Export Outlook Address Book as CSV File
- Open Outlook

- Click File then Select "Import and Export..."

- In the Import and Export Wizard window, click "Export to a file" then Next

- Choose the file type "Comma Separated Values (DOS)" then click Next

- In the Export to a File window, click "Contacts" then Next

- In the Export to a File windows: Click Browse...
- Choose a location to save your address book (desktop perfered)
- Type a file name into the "File name:" text box
- Click OK

- Click "Next

- Click Finish and your file will be saved to your desktop.
Import Comma Separated Address Book into Zimbra Contacts
- Open a web browser
- Log into Zimbra
- Click on the "Preferences" tab

- Click on the "Import/Export" tab
- Under the Import section choose:
- Type: Contacts
- Destination: [Browse...] and select Contacts
- File: [Browse...] for the CSV file created by export from Thunderbird

- Click "Import"
- A green "Import Started" pop-up will appear towards the top of the Zimbra window
- When the import completes, an Informational pop-up will appear stating "Import succeeded."
- Click OK