How does the file manager GUI in this parser enhance the email reading experience?

The file manager is built with Python's Tkinter library, allowing users to browse and select XML files, then automatically parse and display the extracted email information (subject, sender, recipients, etc.) in the window. It supports keyboard arrow keys for file switching and flags XML files that do not conform to the expected format. This GUI can be further integrated with the `ewsManage.py` tool (from the Exchange Web Service (EWS) Development Guide 5 – exchangelib) to create a complete Exchange email client that reads emails via hash authentication.