EEG Signal Processing

Question

I'm reading my excel file in jupyter Notebook using MNE-python. I converted my fif file into .csv file to check it's values. After printing the first 4 columns, the output values does not match with my excel values?

Conversion Code:

Output Values:

Original Values in excel:

import mne
import pandas as pd
raw = mne.io.read_raw_fif('second_dataset_raw.fif', preload=True)
csv_file_path = 'second_dataset_raw.csv'
df = pd.read_csv(csv_file_path)
df.head(4)

The output does not matches with my original values in excel file. The path of file is also correct with proper name.