If you are facing any kinds difficulty with converting EML file to Outlook PST file format, then you can make use of third party tool Regain Windows Live Mail to PST Converter Tool is an advanced solution for EML to PST Conversion. This tool can perform batch conversion by allowing you to select multiple EML files from your system. It performs a very safe and quick conversion without causing any changes or alteration to the original files which are selected. All the selected EML files are remained intact or unchanged, and a new PST file is created at user-defined location for saving all the data.