# XML Validation

To ensure that Google can process your feed, use an XML schema validator
before submitting your feed. You can use xmllint to validate your feed with
this command:

    xmllint --schema http://www.google.com/shopping/reviews/schema/product/2.4/product_reviews.xsd \
            --noout file.xml

## Alternatives

There are a number of tools available to help you validate the structure of
your XML files:

- [W3C list of XML schema tools](http://www.w3.org/XML/Schema#Tools)
- [Altova XMLSpy XML Editor](http://www.altova.com/xmlspy.html)
- [oXygen XML Editor](http://www.oxygenxml.com/)
- [xmllint](http://xmlsoft.org/xmllint.html) from [libxml2](http://www.xmlsoft.org/)