Validate XML
A valid XML Document, in addition to being well-formed, conforms to all the constraints imposed by a schema (a DTD, Relax NG Schema, Schematron or an XSD). In other words, it does not contain any tags that are not permitted by the schema, and the order of the tags conforms to the schema's specifications.
How to validate XML
To validate any XML Document against a DTD, Relax NG Schema, Schematron or XSD:
Open your XML Document in the XML Editor.
Click
XML > Validate.
The Errors view is automatically displayed to show any errors in the XML Document. Click on the error message to jump to the position where the error occurred.
See Also
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