Configuration in PS script

I have to write a script for deleting files in folder based on this configuration .

<item>

<where>

c:\kapil\Test

</where>

<days to keep>

180

</days to keep>

</item>

<item>

<where>

c:\kapil\Test1

</where>

<days to keep>

180

</days to keep>

</item>

I have to configure this in a script not out side of script like xml file etc .

Could you please share best approach because this script use in production