Error parsing xml syntax error

I have the following code below. I am getting an error "the character ':' hexadecimal value 0x3A cannot be included in a name" Can anyone tell me how to fix this? Thanks Below is the entire code

 public static XDocument GenerateXMLSpreadSheet(DataTable tbl)
         new XDocument(   
            new XDeclaration("1.0", "utf-8", "yes"),   
            new XProcessing**Instruction("mso-application", "Excel.Sheet"),   
            new XElement("Workbook",   
                new XAttribute("xmlns", "urn:schemas-microsoft-com:office:spreadsheet"),   
                new XAttribute("xmlns:ss", "urn:schemas-microsoft- 
                    new XElement("Worksheet", new XAttribute("ss:Name",  
                        new XElement("Table", GetRows(tbl)   
        return xmlssDoc;    
 public static Object[] GetRows(DataTable tbl)
        // generate XElement rows for each row in the database.
        // generate from the bottom-up.
        // start with the cells.
        XElement[] rows = new XElement[tbl.Rows.Count];

        int r = 0;
        foreach (DataRow row in tbl.Rows)
            // create the array of cells to add to the row:
            XElement[] cells = new XElement[tbl.Columns.Count];
            int c = 0;
            foreach (DataColumn col in tbl.Columns)
                cells[c++] =
                    new XElement("Cell",
                        new XElement("Data", new XAttribute("ss:Type", "String"),
                            new XText(row[col].ToString())));
            rows[r++] = new XElement("Row", cells);
        // return the array of rows.
        return rows;
Jon Skeet

Basically, that's not how you handle namespaces in LINQ to XML. You never specify a string with a colon in - instead, you build up an XName from an XNamespace and a string.

The good news is that LINQ to XML handling of namespaces is simple. Here's a complete example:

using System;
using System.Xml.Linq;

public class Test
    static void Main(string[] args)
        XNamespace ns = "urn:schemas-microsoft-com:office:spreadsheet";
        var doc = new XDocument(   
            new XDeclaration("1.0", "utf-8", "yes"),   
            new XProcessingInstruction("mso-application", "Excel.Sheet"),   
            new XElement(ns + "Workbook",
                new XAttribute("xmlns", ns),
                new XAttribute(XNamespace.Xmlns + "ss", ns),
                new XElement(ns + "Worksheet", 
                   new XAttribute(ns + "Name", "my-table-name"),
                   new XElement(ns + "Table")

Output (reformatted for clarity):

<?mso-application Excel.Sheet?>
  <ss:Worksheet ss:Name="my-table-name">
    <ss:Table />

Note how you need to specify the namespace for all the elements and attributes.

Because you've specified an explicit prefix for the namespace, LINQ to XML uses it everywhere. If you remove this part:

new XAttribute(XNamespace.Xmlns + "ss", ns)

... then the namespace for elements will be defaulted, and LINQ to XML will generate a prefix for the attributes that need it explicitly specified (as attributes don't default their namespaces).

Then the output is (for example):

<?mso-application Excel.Sheet?>
<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet">
  <Worksheet p2:Name="my-table-name" xmlns:p2="urn:schemas-microsoft-com:office:spreadsheet">
    <Table />


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