If you want to convert multiple MBOX files to EML format simultaneously, the eSoftTools MBOX Converter Tool is the best and most reliable solution. This software allows users to convert multiple MBOX files to EML format at once without any data loss. After installing the tool, simply add your MBOX files, select the EML format, and start the conversion process. Once the conversion is complete, the EML files can be easily opened in Windows Live Mail, Outlook Express, or other supported email clients. This tool is fast, secure, and has a user-friendly interface.