Really simple. For using you need:

pip install requests pandas openpyxl

Or just:

pip install -r requirements.txt

Then you insert your API key in:

# Clave API de Steam
api_key = 'YOUR_STEAM_ID'

And add the necessary user ids and put the names you like for each user in:

# REPLACE THE VALUES IN STEAM_IDS WITH YOUR IDS AND NAMES DESIRED
def main():
    steam_ids = {'ID_1': 'USER_1', 'ID_2': 'USER_2', 'ID_3': 'USER_3'}

Currently it doesn't show the genres or the coop capability yet. Kindly do a PR if you want.