It's not. It will take another 20 years until the last old numbercruncher is retired. Excel is just too fast and too convenient.
Before I write a piece of code to import numbers from a PDF, others from a website and the third array from a .csv, I already have the results in excel: copy, pasta, formula, done.
Python and Jupyther is good for projects that are too much of a load on excel, but for everything else, excel is still king
... and there are tons of ordinary office workers who don't need that much flexibility and excel is enough and even more than enough for them. And "always" will be.
