EasyXML how to get a value

Hello i have tried using the EasyXML object without succes.
I tried searching some tutorials but couldn't find any, and the object doesn't include a help file or .mfa's.

Here is the xml file:

Code:

---

<?xml version="1.0" encoding="UTF-8"?>

<Settings>
  <Visualsettings>
    <Teststring value="4" />
    <Unimportandvalue value="7" />
  </Visualsettings>
  <othersection>
    <test value="9" />
  </othersection>
</Settings>

---

How can i get the value of "Teststring" using EasyXML or another method?
Also when the value is equal to 4 i want to change it to for example 5.
Thanks for reading hopefully someone can help me with this.