XML to Json serialization not working right.

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C#

JSON

JSON.NET

XmlSerializer

I'm trying to serialize XML to JSON. Getting the XML from a file location and running it to a foreach statement to serialize. But the thing is the output of the json is

{"ExtSerial":"KDI2015050501"}
{"Date":"02/01/2015"}
{"CustomerRefNbr":"15-000001"}
{"Description":"2015 FEBRUARY RENTAL"}
{"Customer":"TRDA0139"}
{"Amount":"482072.5800"}
{"AQ_Branch":"KDI"}
{"AQ_COA":"4100503000"}
{"LineSubAccount":"OPMOPN000"}
{"LineTaxCategory":"False"}
{"LineQuantity":"1"}
{"LineUnitPrice":"482072.580000"}
{"AQ_PostStatus":"0"}
{"AQ_StatusDate":"02/01/2015"}
{"DTS":"02/01/2015"}
{"LineDescription":"Office Rental - Zero-Rated Sales"}

Here is the XML:

<root><ExtSerial>KDI2015050501</ExtSerial>
<Date>02/01/2015</Date>
<CustomerRefNbr>15-000001</CustomerRefNbr>
<Description>2015 FEBRUARY RENTAL</Description>
<Customer>TRDA0139</Customer>
<Amount>482072.5800</Amount>
<AQ_Branch>KDI</AQ_Branch>
<AQ_COA>4100503000</AQ_COA>
<LineSubAccount>OPMOPN000</LineSubAccount>
<LineTaxCategory>False</LineTaxCategory>
<LineQuantity>1</LineQuantity>
<LineUnitPrice>482072.580000</LineUnitPrice>  
<AQ_PostStatus>0</AQ_PostStatus>
<AQ_StatusDate>02/01/2015</AQ_StatusDate>
<DTS>02/01/2015</DTS>
<LineDescription>Office Rental - Zero-Rated Sales</LineDescription></root>

It won't work without the root tag for some reason.
Here is my code:

static void Main(string[] args)
{
    XElement xEle = XElement.Load(@"D:\Documents\Projects\HeXML\tae.xml");
    IEnumerable<XElement> invoices = xEle.Elements();

    foreach (var invoice in invoices)
    {
        Console.WriteLine(JsonConvert.SerializeXNode(invoice));
    }
    Console.ReadLine();
}

I'm sorry. I want to know where I went wrong.