The PyXLL/Jupyter interface would be drab without custom menus and graphical feedback.

Excel Dropdown with NO worksheet data list (with video) Nov 2020
ASCE 7-16 Ice Loading Apr 2018
Although ice loading is written as a simple formula, the formula varies with structural geometry (W, T, C, etc). I haven’t seen it automated in software.
AISC C Coefficient for Bolt Groups (with video) Nov 2017
Replaces 48 pages of design tables in the AISC Manual. Allows any: bolt quantity or row spacing or column spacing or rotation No manual interpolation required. Karl Hoitsma, P.E. (khoitsma)
PyXLL Programmable Data Validation Nov 2017
… continued from PyXLL Dictionaries (earlier post)
PyXLL Dictionaries — Simple retrieval of data Nov 2017
Code for the dictionary function