Yes, you can convert Windows Live Mail to Outlook PST without opening Outlook. I recommend eSoftTools Windows Live Mail Converter, a third-party tool. This tool securely converts WLM to Outlook PST and other file formats like pst. The application enables users to directly import Windows Live Mail to Outlook PST, MSG, EMLX, MBOX, MHTML, and HTML, among other formats. It is compatible with all Microsoft Outlook editions and Windows versions up to and including Windows 10.
Read More:- Windows Live Mail to Outlook Converter
Read More:- Windows Live Mail to Outlook Converter