How to remove an unnamed column and remove index while exporting a file?

For removing unnamed columns, we need to import the dataset and after importing following libraries

import numpy as np

import pandas as pd

df=pd.read_csv('dfairannual.csv')

After importing the dataset, we get an unnamed column as follows:

Now to remove such a column that contains no name, we can try the following code.

df = df.loc[:~df.columns.str.contains('^Unnamed')]

Here, with this code, any columns which contain no names will be successfully removed.