You cannot manually migrate EML files to Outlook therefore mostly users adopt MailsDaddy EML to PST Converter. This is a hassle-free program that allows users to convert Windows Live Mail, Outlook Express, Zoho Mail, Thunderbird, and many other EML based email clients data to Windows Outlook. Users can easily install the tool on Windows operating system and convert EML to PST format with all mail properties and attachments. EML to Outlook Converter automatically manages parent and child folder, inline images, HTML formatting, and attachment in converted PST file in few efforts.
With the help of this tool, user can also migrate EML to MSG, EMLX, HTML, MHTML & RTF format along with attachments. The software generates the preview before displaying the email in the panel. The demo version of this tool allows the user to transfer 20 emails from each mailbox without any cost. For more detail visit: https://www.mailsdaddy.com/eml-to-pst-converter/
For the fast and secure conversion, you should use any proficient 3rd party tool. If you are facing difficulty finding out the best tool in various tool don't worry I had suggested you third party tool such as WholeClar EML to PST Converter which I had used some days ago. Every user can easily use this tool on all EML based email clients such as Apple Mail, Windows Live Mail, Outlook Express, and many more.