如何在Unity中用C＃编写XML文件？

Someone please help! This is really confusing for me. I can't find anyone on the internet that can explain this well enough. So here is what I need: I need someone to explain how to create an XML file in Unity. People have told me to look at a stream writer. I have searched for this but no one has given a tutorial on how to write it. I also do not know what a .NET is so please don't give me that as an answer. I have looked through the microsoft page for XML files as well but I cannot find the right answer. This is literally all I'm looking for:Someone please help! This is really confusing f