How To Create .Xsd File For Validation Of Xml File As I Have Attached The Code So Please Give Me The .Xsd File

<?xml version="1.0" encoding="UTF-8"?>
<Document>
    <Properties>
        <Property name="page_height" value="468"/>
        <Property name="page_width" value="684"/>
        <Property name="margin_left" value="0"/>
        <Property name="margin_right" value="0"/>
        <Property name="margin_top" value="0"/>
        <Property name="margin_bottom" value="0"/>
        <Property name="overflow_margin_top" value="0"/>
        <Property name="overflow_margin_bottom" value="0"/>
    </Properties>
    <Section name="Front" description="Front of Postcard">
        <Page name="Front Page" description="Front Page of Postcard">
            <Zone name="Front_Photo" description="background image" type="Image" categoryName="Postcard_Front_Photo">
                <Image name="Front_Photo" offsetX="9" offsetY="9" positionType="absolute" width="666" height="450"/>
            </Zone>
        </Page>
    </Section>
    <Section name="Back" description="Back of Postcard">
        <Page name="Back Page" description="Back Page of Postcard">
            <Zone name="Back_Photo" description="background image" type="Image" categoryName="Postcard_Back_Photo">
                <Image name="Back_Photo" offsetX="9" offsetY="9" positionType="absolute" width="666" height="450"/>
            </Zone>
            <Zone name="Back_Address" description="mailing address" type="Text" categoryName="Text">
                <Paragraph name="Back_Address" offsetX="358" offsetY="189" positionType="absolute" width="289" height="100"><HTMLBlock name="Back_Address"/></Paragraph>
            </Zone>
            <Zone name="Back_Indicia" description="permit affixed upon order" type="Text" categoryName="Text">
                <Paragraph name="Back_Indicia" offsetX="534" offsetY="325" positionType="absolute" width="113" height="100"><HTMLBlock name="Back_Indicia"/></Paragraph>
            </Zone>
        </Page>
    </Section>
</Document>