Team

Felix Zumstein

Managing Partner

Felix is the creator of xlwings, an open-core Python package that allows you to automate Excel with Python. xlwings also acts as drop-in replacement for VBA, thereby giving you access to Python's rich & modern ecosystem for data science and machine learning. He's also the author of the O'Reilly book "Python for Excel, 2nd Ed." (2026) and a LinkedIn Learning instructor.