Loading IntermediateSerializer XML Via Content Pipeline?

Content
1

Hello everyone,

I came across the IntermediateSerializer, it looked perfect for my map-loading purposes, and so I used it to serialize some dummy info. Now, I have a test map XML file that looks like this :

<?xml version="1.0" encoding="utf-8"?>
<XnaContent xmlns:TileSystem="PlatformerPrototype.TileSystem" xmlns:PlatformerPrototype="PlatformerPrototype">
  <Asset Type="TileSystem:TileMap">
    <width>20</width>
    <height>15</height>
    <tileSetImage>
      <Name>Sprites\player</Name>
      <Tag Null="true" />
    </tileSetImage>
    <tileWidth>32</tileWidth>
    <tileHeight>32</tileHeight>
    <tileLayers>
      <Item>0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0</Item>
    </tileLayers>
    <gameObjects>
      <Item Type="PlatformerPrototype:Solid">
        <position>0 300</position>
        <maskPosition>0 0</maskPosition>
        <maskSize>640 180</maskSize>
        <depth>0</depth>
        <debugTexture>
          <Name>Sprites\player</Name>
          <Tag Null="true" />
        </debugTexture>
      </Item>
      <Item Type="PlatformerPrototype:Solid">
        <position>0 100</position>
        <maskPosition>0 0</maskPosition>
        <maskSize>300 140</maskSize>
        <depth>0</depth>
        <debugTexture>
          <Name>Sprites\player</Name>
          <Tag Null="true" />
        </debugTexture>
      </Item>
    </gameObjects>
  </Asset>
</XnaContent>

Ok, so now, where do I go?

For now, I only have one project with everything in it.
Apparently, I’m supposed to create a new “class library” project and add it to the references.
The thing is, I’m new to C# in general and don’t know how to do that.

What should I put in my second project?
What should I put in my main project?

I’m using Visual Studio 2017 if that helps in providing some guidance as to what I have to do?
I’m sorry for the stupid question, but I’m genuinely puzzled.

Thank you in advance,