@calebmedia – no such thing as dumb questions! Here’s a link to where you can learn all the basics you need to know about XML (it’s not that hard). https://www.w3schools.com/xml/default.asp
Here’s a bit of mine as an example.
<rss version="2.0"
xmlns:media="https://www.yourdomain.com/yoururl"
xmlns:jwplayer="https://developer.longtailvideo.com/trac/wiki/FlashFormats">
<channel>
<title>aquAdonis - Water is Life - Video Channel</title>
<item>
<title>Flume Channel Tenerife</title>
<image>https://www.yourdomain.com/yoururl</image>
<description>Me swimming fly in the flume channel at the 3T in Tenerife.</description>
<pubDate>10.02.2009</pubDate>
<media:credit role="author">Nicolas Messer</media:credit>
<media:content url="https://www.yourdomain.com/yoururl" />
</item>
<item>
<title>Challenge Red-Fish 2009</title>
<image>https://www.yourdomain.com/yoururl</image>
<description>My 100m fly from the 2009 Challenge Red-Fish in Neuchatel.</description>
<pubDate>13.02.2009</pubDate>
<media:credit role="author">Nicolas Messer</media:credit>
<media:content url="https://www.yourdomain.com/yoururl" />
</item>
Of course you would replace “https://www.yourdomain.com/yoururl” with the url to your site, preview image and video file. Doesn’t really matter where you place it on your server as long as you point to it in the playlist shortcut.