Can I alter the namespace of Excel using a Python-in-Excel function? I can access the excel namespace from python. Let's say, I named cell C17 "my_excel_variable". I can access its value in python: xl("my_excel_variable") Now I am wondering, if there is a function, with which I can define my own variables in python, that I can call in an excel-formula. Whats the application? In my line of work, we work with standardized material data: Concrete of class C20/25 has a compressive strength (f_ck) of 20 MPa and a tensile strength (f_ctm) of 2.2 MPa. For C50/60 its 50 MPa and 4.1 MPa resepectively. What is the goal? I am looking to build a function, that is simply accessed load_material_properties_to_excel_namespace('C20/25') after which i can use the properties in excel formulas throughout my spreadsheet =.85 * f_ck / 1.5 Thank you for your consideration Continue reading...