[Python] python :fixe width column export excel

The following code generates an excel file. The width of the column is 8. I would like to fix it to 20 in my python code.

data = {'Nom \n du collaborateur': ['Jude Bellingham']}
df = pd.DataFrame(data)
file_path = "/home/jovyan/workspaces/syne_ctl_prm/output/OUTPUT_EXCEL_FILE.xlsx"
file_path
df.to_excel(file_path, index = False)`

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