website,email,group_id,group,firstname,lastname,password_hash,billing_firstname,billing_lastname,billing_company,billing_street1,billing_street2,billing_city,billing_region,billing_country,billing_postcode,billing_telephone,billing_fax,shipping_firstname,shipping_lastname,shipping_company,shipping_street1,shipping_street2,shipping_city,shipping_region,shipping_country,shipping_postcode,shipping_telephone,shipping_fax,created_in,is_subscribed
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1
base,,General,General,,,,,,,,,,,,,,,,,,,,,,,,,,default,1

odkaz: http://www.summasolutions.net/blogposts/how-import-customers-magento