Since the creation of python reading in files has become much easier with each update and with each added package. To work with csv and xlsx files the easiest package is the pandas package because it ...

Transform Excel with Python integration: automate tasks, analyze data, and uncover insights for smarter decisions. This ...

It is nicer to have everything in one file. The key is to use the often forgotten here document feature of bash. This works best when the program in question is an interpreter like Python.