I tried to import the schema into VS 2010 and Excel and both say not a valid schema. So the answer is you can't generate a sample document from the schema and you should go to the source and get a corrected one.
If there is no root, you do not have a valid document. I think you are confusing the XML declaration with the root -- the root is the first element that is NOT the XML declaration...what you have posted -- is an XML schema fragment.
Last Visit: 31-Dec-99 18:00 Last Update: 25-Sep-16 1:18