Excel._Application oXL;
Excel.Workbook oWB;
Excel.Worksheet oWS;
oXL = new Excel.ApplicationClass();
oXL.ScreenUpdating = false;
oWB = (Excel.Workbook)(oXL.Workbooks.Add(Path.Combine(folder,shablon)));
oWS = (Excel.Worksheet)oXL.Sheets.get_Item(1);
Excel.Range rng; 
string Cell;
Cell = "A1";
rng     = oWS.get_Range(Cell,Type.Missing);
rng.Value2 = "Тест";
//			oXL.ScreenUpdating = true;
//			oXL.Visible = true;
oWB.SaveAs(nm_fl,Excel.XlFileFormat.xlXMLSpreadsheet, 
		Type.Missing, Type.Missing, Type.Missing, Type.Missing, 
		Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, 
		Type.Missing, Type.Missing, Type.Missing, Type.Missing);
oWB.Saved = true;
oWB.Close(true, Type.Missing, Type.Missing);
oXL.Quit();
oXL = null;