XML to CSV

<?xml version="1.0" encoding="utf-8" ?> 
<users>
	<user>
		<user_id>1</user_id> 
		<first_name>George</first_name> 
		<last_name>Washington</last_name> 
	</user>
	<user>
		<user_id>2</user_id> 
		<first_name>Abraham</first_name> 
		<last_name>Lincoln</last_name> 
	</user>
	...
</users>

user_id,first_name,last_name
1,George,Washington
2,Abraham,Lincoln
...

using (CsvWriter writer = new CsvWriter("users.csv"))
using (XmlRecordReader reader = new XmlRecordReader("users.xml", "users/user"))
{
	reader.Columns.Add("user_id", "id");
	reader.Columns.Add("first_name", "first");
	reader.Columns.Add("last_name", "last");

	writer.Write("user_id");
	writer.Write("first_name");
	writer.Write("last_name");
	writer.EndRecord();

	while (reader.ReadRecord())
	{
		writer.Write(reader["id"]);
		writer.Write(reader["first"]);
		writer.Write(reader["last"]);
		writer.EndRecord();
	}

	reader.Close();
	writer.Close();
}