How to connect Python code that relies on CSV data to a website?

I'm building a data analysis tool that I plan to turn into web format.

Currently, I have a massive CSV file that I have compiled and a large python script that uses this CSV file to analyze the data and output results.

What would be the most efficient way to port this to a web format? I was thinking about using Flask, but I'm not sure how to include the CSV file as a part of the website's code.

Appreciate any advice or insight!