Configuration Application Block

Hi,

I plan to use the Configuration Application Block provided by Microsoft
and would like to read and write from the XML file. My XML file format
is as follow:
----------------------------------------------------

<RootNode>
<Header HeaderName="xyz" Key="1">
<Detail Name="xyz1" Key="11" ActiveColor="Blue" Inactive="Green">
<Detail Name="xyz1" Key="11" ActiveColor="Blue" Inactive="Green">
</Header>
<Header HeaderName="xyz" Key="2">
<Detail Name="xyz1" Key="111" ActiveColor="Blue" Inactive="Green">
<Detail Name="xyz1" Key="111" ActiveColor="Blue" Inactive="Green">
</Header>
</RootNode>

Is it possible to create a file like these. If so, then please guide
me.

Thank you,