Excel.Worksheet ObjWorkSheet;
Excel.Workbook ObjWorkBook;
Excel.Application ObjExcel = new Excel.Application();
ObjWorkBook = ObjExcel.Workbooks.Add(System.Reflection.Missing.Value);
ObjWorkSheet = (Excel.Worksheet)ObjWorkBook.Sheets[1];
ObjWorkSheet.Cells[1, 1] = "фывв";
ObjWorkSheet.Cells[1, 2] = "фыв";
ObjExcel.Visible = true;
ObjExcel.UserControl = true;