Tool to change extension for a group of file(s) from extension 1 to extension 2

""" Created on Sat Sep 7 21:22:31 2019

@author:Naveen Kumar Vasudevan, Doctoral Student, The Xi Research Group, McMaster University, Hamilton, Canada.

    [email protected]
    https://naveenovan.wixsite.com/kuroonai

"""

''' required packages : numpy, tqdm

Usage: python exchange.py

'''