how to convert xls to xlsx

Question

I have some *.xls(excel 2003) files， and I want to convert those files into xlsx(excel 2007).

I use the uno python package, when I save the documents, I can set the

Answer 1

Try using win32com application. Install it in your machine.

import sys, os
import win32com.client
directory = 'C:\\Users\\folder\\'
for file in os.listdir(directory):
    dot = file.find('.')
    end = file[dot:]
    OutFile =file[0:dot] + ".xlsx"
    App = win32com.client.Dispatch("Excel.Application")
    App.Visible = True
    workbook= App.Workbooks.Open(file)
    workbook.ActiveSheet.SaveAs(OutFile, 51)   #51 is for xlsx 
    workbook.Close(SaveChanges=True)
    App.Quit()

Thank you.