To convert Windows Live Mail data into Outlook PST Format, you can simply use the
EML Converter. It converts EML files into PST format with all items such as emails, attachments, calendars, contacts, notes, tasks, etc. Moreover, the tool converts EML files into PST, PDF, EMLX, MBOX, MSG, and other file formats. It also migrates Windows Live Mail data into Gmail, Yahoo, Office 365, Thunderbird, etc by importing EML files. Check out the free demo version of the tool on your Mac or Windows device.