Outlook 2010, Outlook 2007, and Outlook 2003.
• "Netscape Thunderbird" - CSV
file for Thunderbird, SeaMonkey Mail, or Netscape Mail.
• "Yahoo! CSV" - use this option to export contacts from one Yahoo Mail account to another.
• "vCard Single File" will lump all your contacts into a single VCF
file.
• "vCard, Zip of .VCF
files" will generate one "vCard" file per contact, and export a single zip download containing them all.
Tip: in doubt, use the Microsoft Outlook format: as one of the most popular email program, its CSV format will likely work for all webmail providers and/or desktop email clients.
Tip: depending on your browser settings, the download will fail. If you get the "This content cannot be displayed in a frame" error message, click on "Open this content in a new window".