Hi Apu,
the blog says
This way our mapping will receive all data from the sheet in an XML format. The only thing that's left is to create an XSD file from the XML file we received in order to be able to use it in the mapping and as our Service Interface and we can proceed with mapping
First you finish the module configuration and run the scenario. it will generate the xml. but it can fail as you don't have the xsd.
From generated xml you can created xsd.
there are some online tools available to convert xml to xsd. then you can use that xsd for your scenario.
Regards,
Muni.