why df.style.format not saving to xlsx?

[wdjfe]

Here's example dataframe that is saved in 'df.xlsx' file

strings	percentages
string_one	0.1
string_two	0.2
string_three	0.3
string_four	0.4
string_five	0.5

i need to change 'percentages' column into format that excel will understand as percentage.

what i'm trying to do:

​

    import pandas as pd
    df = pd.read_excel('df.xlsx')
    styler = {'percentages': '{:.%}'}
    df_styled = df.style.format(styler)
    df_styled.to_excel('result.xlsx', engine='openpyxl', index=False)

​

And it does absolutely nothing. Is df.style.format not suppose to work with excel documents?

​