You can use the XMLTextWriter class to create XML content that uses a namespace. The code lies used to illustrate the idea are taken from the article How to use XMLTextWriter to create an XML document in C#, and you can find more information about XML namespaces from the article How to use XML Namespaces in XML document.

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The XmlTextWriter includes an overloaded version of the WriteStartElement() method that accepts a namespace URI. Here’s how it works:

string ns = “”;w.WriteStartDocument();w.WriteStartElement(“BooksList”, ns);// Write the first book.w.WriteStartElement(“Book” , ns);…