Dim app As New Microsoft.Office.Interop.Excel.Application()
app.Visible = False
app.DisplayAlerts = False
Dim wbks As Microsoft.Office.Interop.Excel.Workbooks = app.Workbooks
Dim workbook As Microsoft.Office.Interop.Excel.Workbook = app.Workbooks._Open("文件目錄", Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing)
'獲取sheet
Dim sheet As Microsoft.Office.Interop.Excel.Worksheet = CType(workbook.Worksheets(1), Microsoft.Office.Interop.Excel.Worksheet)
'添加sheet
'workbook.Worksheets.Add()
'複製sheet
sheet.Copy(Type.Missing, sheet)
'保存Excel
workbook.Save()
'workbook.SaveAs(filepath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing)
'關閉Excel
workbook.Close(False, DBNull.Value, DBNull.Value)
app.Workbooks.Close()
app.Quit()
'回收內存
GC.WaitForPendingFinalizers()
GC.Collect()