This online tool allows you to test your XPath expressions / queries against an XML string or file.You can easily debug your XPath expressions!
This utility also includes an XPath generator that helps you easily create XPath expressions. Double click (In "Your XML string" editor) the element, attribute, or text you want to generate the associated xpath expression.
You can see example XPath expression to help you to find your Xpath query.
You can see the user guide to help you to use this XPath tester.