About XML import and export
Geodatabase schema (and optionally, data) can be imported from and exported to an Extensible Markup Language (XML) workspace document. The IGdbXmlImport interface is used to import into an existing geodatabase and to resolve any conflicts that might occur with existing datasets. The IGdbXmlExport interface and the GdbExporter class are used to export to XML.
See Also:
How to export a dataset to XMLHow to import a dataset from XML