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.
naveenovan@gmail.com
https://naveenovan.wixsite.com/kuroonai
"""
''' required packages : numpy, tqdm
Usage: python exchange.py
'''