The most well-known tool for effortlessly converting a Windows Live Mail mailbox to an Outlook account is eSoftTools Windows EML to PST Converter software. All EML-based email clients, including Thunderbird, Outlook Express, Windows Live Mail, Windows Mail, etc., are supported by this application, which has a straightforward GUI interface. Best Free EML to PST Converter software It provides a 100% accurate conversion of multiple Windows Live Mail files into an Outlook environment fast and without any errors. Additionally, you can use the demo version's 20 emails per mailbox to convert for free.