Read the bounced email content

Hi all, I am trying to read the undelivered emails (bounced email) from Gmail inbox and extract certain items from the mail (recipient, sender, subject and time) to populate it into an excel file.

Right now, i already save it into .eml files using ‘Save Email’ activity and read it using notepad but having trouble in extracting the items that i need in both original email and the undelivered email. Any idea on how to do it?