Hello Fares Abodous,

It is easy to install external libraries in windows, you can simply install by writing the below command in command prompt :
pip install library_name
before that please make sure that the path of python version and its pip is added in Environment Path.

For more information please visit the python packages documentation : https://docs.python.org/3/installing/index.html

I hope this will help you to install required libraries.

Thanks & Regards,
Email: odoo@aktivsoftware.com
Skype: kalpeshmaheshwari