Hi aaplert,
Ok, thank you, I get it now, xml can handle unstructured data as follows:
@
<?xml version="1.0" encoding="utf-8"?>
<slide>
<object>
...... more details
</object>
<object>
...... more details
</object>
</slide>
<slide>
<object>
...... more details
</object>
<object>
...... more details
</object>
</slide>
@