DTD and XML

[durug]

Hi everybody!
I have here this DTD schema and I can't figure out how to write a correct XML that will be validated against this DTD. Can anybody give me a short example or maybe a tool where you provide the DTD and he is creating a XML after the DTD file.

THanks a lot!
Here is the DTD

<?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?>
<!ELEMENT ASNHeader (ASNLine*)>
<!-- Required fields -->
<!ATTLIST ASNHeader ASNNumber CDATA #REQUIRED>
<!ATTLIST ASNHeader ShipToID CDATA #REQUIRED>
<!ELEMENT ASNLine (ASNDetail*)>
<!-- Required fields -->
<!ATTLIST ASNLine ASNLine CDATA #REQUIRED>
<!ATTLIST ASNLine OrderNumber CDATA #REQUIRED>
<!ATTLIST ASNLine OrderLine CDATA #REQUIRED>
<!ELEMENT ASNDetail EMPTY>
<!-- Required field -->
<!ATTLIST ASNDetail Quantity CDATA #REQUIRED>
<!ELEMENT ASNLoad (ASNHeader+)>

Thanks!
Durug