I have a pythonfile that checks a vulnerability with a textfile. Can I just convert the Windows csv file to text or do I have to use an option in my Python script to read a Windows csv file.
CSV files are text files. Being a CSV file on windows I would not expect to be special.
It you have foo.csv then you can open with notepad, for example.
Use the python csv module to process the csv file.
See csv — CSV File Reading and Writing — Python 3.11.2 documentation
Also, if you can install packages for your script, assuming you want a text file in some “standard” format (TSV, etc.) you can do it in ≈one line with Pandas:
import pandas as pd
pd.read_csv("input.csv").to_tsv("output.tsv")