Export Your Gmail Contacts
Your address book isn’t tied to one Gmail address. You can use it with another Gmail account or a desktop email program such as Outlook, Mozilla Thunderbird, or Yahoo Mail. To export your full Gmail address book:
Where to Find Contacts Automatically Added by Gmail
Your list and file of contacts may be large because Gmail adds new contact entries to your address book when you reply to an email or forward it to a new address. These new automatic entries are found under Other contacts in Gmail Contacts.
The Outlook CSV format exports all data and converts names to the default character encoding.The Google CSV format exports all data and uses Unicode to preserve international characters. Some email programs such as Outlook do not support Unicode.The vCard format is an internet standard that is supported by many email programs and contact managers such as OS X Mail and Contacts.
Prevent Gmail From Adding Contacts Automatically
To prevent Gmail from adding new addresses to your Contacts automatically:
