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OS is Windows 10. <br />
&nbsp;Thunderbird 45.3.0.<br />
Want to transfer my Contacts from Windows Live Mail (2012) to Thunderbird. I am told I must first export the Contacts to a csv file. And then import them to Thunderbird. To do the first part, I &nbsp;am told to open Windows Live Mail, click 'File' and 'export', then &nbsp;chose 'contacts' &nbsp;and there you go. However in my up-to-date &nbsp;Live mail when I click on 'File', &nbsp;I am given the option to export 'email', or 'account'. &nbsp;There is NO option for exporting 'Contacts', that I can see. <br />
How to proceed.
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OS is Windows 10. 
 Thunderbird 45.3.0.
Want to transfer my Contacts from Windows Live Mail (2012) to Thunderbird. I am told I must first export the Contacts to a csv file. And then import them to Thunderbird. To do the first part, I  am told to open Windows Live Mail, click 'File' and 'export', then  chose 'contacts'  and there you go. However in my up-to-date  Live mail when I click on 'File',  I am given the option to export 'email', or 'account'.  There is NO option for exporting 'Contacts', that I can see. 
How to proceed.

How to export Contacts from Windows Live Mail to Thunderbird

Thunderbird is an email, newsgroup, news feed, and chat (XMPP, IRC, Twitter) client that supports POP and IMAP and LDAP address completion. The vanilla version is not a personal information manager, although the Mozilla Lightning extension adds PIM functionality. Thunderbird can manage multiple email, newsgroup, and news feed accounts and supports multiple identities within accounts. Features such as quick search, saved search folders, advanced message filtering, message grouping, and labels help manage and find messages. Thunderbird incorporates a Bayesian spam filter, a whitelist based on the included address book, and can also understand classifications by server-based filters such as SpamAssassin. Extensions allow the addition of features.

Thunderbird

Windows Live Mail is the successor to Outlook Express, a discontinued email and news client bundled with several versions of Microsoft Windows, from Windows 98 to Windows Server 2003, and available for Windows 95 and Mac OS 9. In Windows Vista, Outlook Express was superseded by Windows Mail, then again by Windows Live Mail as separate software. Outlook Express is a different application from Microsoft Outlook. Beginning with Windows Vista Microsoft included Windows Mail, based on large parts of Outlook Express source code.

Windows Live Mail

An email client, email reader or more formally mail user agent (MUA) is a computer program used to access and manage a user's email. A web application that provides message management, composition, and reception functions is sometimes also considered an email client, but more commonly referred to as webmail.