new_contents: import re
  from collections import Counter
  
  with open('test.txt') as f:
          text = f.read()
  
  words = re.findall(r'\w+', text)
  
  cap_words = [ word.upper() for word in words ]
  
  words_counts = Counter(cap_words)
  print(words_counts)
  print("\n###########################")
  print(words_counts.most_common(1))
  
  print(words_counts.most_common(1)[0][0])
  
subject: Create cntMostFreqWordsInFile.py