How to import excel sheet in SQL server using query.

OleDbConnection cnn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" +"D:\\ExcelSheet.xls"+ "; Extended Properties=Excel 12.0;");

OleDbCommand oconn = new OleDbCommand("select * from [Sheet$]", cnn);

cnn.Open();

OleDbDataAdapter adp = new OleDbDataAdapter(oconn);

DataTable dt = new DataTable();

adp.Fill(dt);