Data Controls :: Creating Excel Sheet From Datatable

I am converting DataTable To Excel Format using oledb im using following code

private void btnexcel_Click(object sender, EventArgs e) {
Dictionary<String, String> schema = dac.DatasourceSchema(tablename); //data tables Columns Headers And Data types
string[] values = schema.Values.ToArray(); // column Headers
string[] keys = schema.Keys.ToArray(); // datatypes
SaveFileDialog saveFileDialog = new SaveFileDialog();

[Code] ....

I want to insert my Dictinary key value pairs in below command

cmd.CommandText = "CREATE TABLE sheet1 (ID INTEGER,NAME NVARCHAR(100))"; /
cmd.ExecuteNonQuery();