One of the best easy ways to convert PST to EML format is by using Regain PST to EML Converter. The software promises a very easy and reliable way to convert PST files into EML format in minimal time, as it can work with both healthy and corrupted PST files along with passwords-protected PST files. There also provision for batch converting Outlook folders. It has an easy-to-use interface and preview feature to check the content of emails before saving, so it is hassle-free. It supports all versions of Outlook and Windows and offers a free trial to test the tool.