How to create WSDL based on a given XML file?

I have an XML file whose content is just the data to be transferred:

<?xml version="1.0" encoding="UTF-8"?>
<args>
    <name>project-x</name>
    <namespace>/anycorp/projects</namespace>
    <description>Project-x performs tests</description>
    <metadata-namespace>true</metadata-namespace>
    <dictionary-namespace>true</dictionary-namespace>
    <group-roles>
        <name>ANYC_ORG_ABC123_MGR</name>
        <name>ANYC_ORG_ABC123_CTR</name>
        <name>ANYC_ORG_ABC123_RDR</name>
        <name>ANYC_ORG_ABC123_REV</name>
    </group-roles>
    <create-accounts>
        <account>
            <domain>anycorp</domain>
            <user>nico.jose</user>
            <name>Nico Jose</name>
            <password>password1</password>
        .............

Now I created a new WSDL file in Eclipse, and seems I need to define schema based on this XML file in the new WSDL. Eclipse WSDL editor has an UI interface, but I don't know the specific steps to create the WSDL based on the given XML file, any suggestions?