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Please use the MailMessge class to load the EML file and save it in various formats such as MSG, MSG Unicode, MHTML, EMLX.
// Base folder for reading and writing files
string strBaseFolder = “D:\Data\Aspose\resources\”;
// Initialize and Load an existing EML file by specifying the MessageFormat
MailMessage eml = MailMessage.load(strBaseFolder + “AnEmail.eml”);
//Save the Email message to disk in Unicode format
eml.save(strBaseFolder + “AnEmail.msg”, SaveOptions.getDefaultMsgUnicode());
Thank you! That works.