XML reserved characters

I got sucked into a project at work where I have to pull data from a database table and write out an XML file. I have been searching and have several answers from a couple to several but I thought I would ask the XML wranglers here:

Are there any reserved characters that should be escaped in an XML document?
If so, what’s the proper way to escape them?

google is your friend here
https://www.w3resource.com/xml/reserved-markup-characters.php

Yeah Google isn’t my friend when there are many conflicting results. Thanks for the link.

The XML classes handle this for you.