After I use MNE for preprocessing, I want to export EEG data to Excel on average. Could you please tell me how to do it？

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Hello, if you’ve created evoked objects with MNE-Python, you can then use their to_data_frame() method to generate a Pandas DataFrame, from where you can easily export to XLSX, CSV, etc., e.g.:

evoked_df = evoked.to_data_frame(index='time')
evoked_df.to_excel('evoked.xlsx')

Best wishes,
Richard

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