There are many tools available on the internet for Converting EML file into PST file. but its very hard to choose one of them. So I want to Suggest you the best tool Regain EML to PST converter that can easily convert your EML file to PST file. Regain EML to PST Converter is an advanced converter tool with which you can choose both multiple and single EML files to perform conversion. This tool provides complete support for all selected EML files and batch conversion.
Note: Through this tool you can see the Preview of all Convertible emails before saving. In this tool free trial version you can save 15 emails per folder at free of cost.
Get this tool free demo version from here: http://www.emltopstsoftware.com