Excel Interop C# Demo - Essigwurst

using Excel = Microsoft.Office.Interop.Excel;

public static void Main(string[] args)
{
    Excel.Application MyExcel = new Excel.Application();
    MyExcel.Visible = true;
    Excel.Workbook MyWorkbook = null;

    object Missing = System.Reflection.Missing.Value;

    MyWorkbook = MyExcel.Workbooks.Open(Template);

    Excel.Sheets MySheets = MyWorkbook.Worksheets;
    Excel.Worksheet MyWorksheet = (Excel.Worksheet)MySheets.get_Item("WorksheetName");

    MyWorksheet.SaveAs(Path + "Document.xlsx");

    MyWorkbook.Close(false, Missing, Missing);
    MyExcel.Quit();
}