File Receiver Adapter: Content Conversion

Hello,

I have a message with the following xml structure:

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

<ns0:MT_Addenda xmlns:ns0="http://www.sat.gob.mx/cfdi/1">

<Line>Text 1</Line>

<Line>Text 2</Line>

</ns0:MT_Addenda>

In the file receiver adapter I want to convert to the following plain text file:

Text 1

Text 2

What parameter do I have to set in the adapter ?

Thanks for your help?

Elko