How to convert an XMI model-instance of Ecore to XML of the given XSD?

Question

I am using the Ecore model which is based on imported XML Schema file (XSD). Using generated Java classes (based on Ecore model), I build an instance of the model and save it as a resource in XMI standard. This XMI file is actually an XML file which conforms to the Ecore model.

Questions:
Is it possible to convert the instance of the Ecore model from XMI format to XML format that conforms to the original XML Schema (XSD)?

Which sdks/frameworks/plugins can provide such conversion?

Thanks