convert all excel files in folder to csv python

1import pandas as pd
2import os
3import glob
4
5
6source="D:\\source\\"
7dest='D:\\dest\\'
8os.chdir(source)
9
10for file in glob.glob("*.xls"):
11       df = pd.read_excel(file)
12       df.to_csv(dest+file+'.csv', index=False)
13       os.remove(file)
14for file in glob.glob("*.xlsx"):
15       df = pd.read_excel(file)
16       df.to_csv(dest+file+'.csv', index=False)
17       os.remove(file)