If you want to Open EML files in Outlook files then using the most successful third-party solution known as eSoftTools EML Converter Tool. It has multiple high-level features like- convert single or bulk EML files to various formats such as EMLX, MSG, MBOX, HTML, MHTML, OFFICE365, Gmail, etc, email filter option, free demo pack, and support all MS Outlook and Windows versions up to 10.
Get more info- Open EML files in Outlook
Get more info- Open EML files in Outlook
