I use Excel for POCs quite a lot. Sometimes it’s easier to generate a CSV file, load it up in Excel and test the maths there instead of writing code to do that. And you can visualise the data as well, so your tens of thousands of rows are easier to digest and understand if what you’re doing is sound or not. It takes a lot more time to do decent data visualisation in JS or Python.
I use Excel for POCs quite a lot. Sometimes it’s easier to generate a CSV file, load it up in Excel and test the maths there instead of writing code to do that. And you can visualise the data as well, so your tens of thousands of rows are easier to digest and understand if what you’re doing is sound or not. It takes a lot more time to do decent data visualisation in JS or Python.