Importing EML to Outlook 2007 - Version 4.0 Windows Mail as we know is the email client of Windows Vista. In Windows Mail email messages are store into .EML format, you cannot open Windows Mail email messages into Outlook 2007 without converting their email format to .PST. How to Import EML to Outlook 2007? Use PCVARE EML to PST Converter software from Importing EML to Outlook 2007. Using these program users can import EML to Outlook 2007 easily and quickly. Importing EML to Outlook 2007 is easy with this program because of its easy user interface. Convert EML to MS Outlook 2007 with email properties, attachments, formatting, hyperlink, etc.