In order to convert Gmail emails to EML, you need to set EML as a target format and add various parameters for the formatting of converted messages. These parameters are:
- Conversion mode (converting all selected messages to one file, or one message per file)
- Set of fields for conversion (sender, subject, date, body, etc.)
- Header & Footer content, orientation.
- Attachments (if you need to save them too).
Remember that settings are applied to all messages you selected as sources. So if you need to convert many emails from Gmail to EML with the same settings, it is reasonable to convert them all in one batch. This will save your time. Also you can set Gmail EML converter to extract attachments to separate folder or convert them together with the email messages, depending on the type of attachments.
Experiment with various options to get the EML copies that exactly suit your needs. Free trial version is available here!