Python Excel Run Macro to xlsx file

How do I take the Macro from my xslm file and apply it to my xlsx file?

import cx_Oracle  
import xlsxwriter  
import win32com.client

SQL = "Select * FROM TABLE"  
cursor1 = con.cursor()  
cursor1.execute(SQL)  
workbook = xlsxwriter.Workbook('OUTPUT.xlsx')  
worksheet = workbook.add_worksheet('Summary - Attendee')  
worksheet.set_tab_color('red')  

for i, row in enumerate(cursor1):  
    for j, col in enumerate(row):  
        worksheet.write(i+1,j,col)  

excel = win32com.client.Dispatch('Excel.Application')  
excel.Visible = 1  
excel.Workbooks.Open(Filename="Path\Macro.xlsm")  
excel.Application.Run("Format")  
excel.Workbooks(1).Close(SaveChanges=1)  
excel.Application.Quit()  
excel = 0  

workbook.close()

Macro.xlsm VBA code:  
Sub Format()  
    Sheet1.Select  
    Cells.Select  
    Cells.EntireColumn.Autofit  
End Sub  

Both of these work but as separate processes and files. I want to call the Macro from xlsm and apply it into my xlsx file to format my xlsx file. Any ideas?