Convert Outlook Express EML to PST - Version 4.0 Microsoft Outlook being the most preferred email client it is not surprising to see that more and more users are choosing to Convert Outlook Express EML to PST. Migrating from Outlook Express to Outlook PST gives users the option to open and view EML files from Outlook Express in Outlook. Along with this, it is also necessary to preserve all the metadata information, formatting (RTF and HTML), attachments, etc. Convert Outlook Express EML to PST with EML to PST Converter. Software makes it possible to access Outlook Express EML files in MS Outlook and also preserve all the email elements of EML files. EML to PST tool is compatible with Outlook Express Version 6.0, 5.0, 5.5, 4.0, etc and MS Outlook version 2010, 2007, 2003, 2000, etc. All Windows version are equally supported by the software. Other email client using .EML format such as Windows Live Mail, Windows Mail, Thunderbird, Mac Mail, Apple Mail, etc are also support by EML to PST Converter, using the program you can also transfer EML files from the mention email clients to Outlook PST.