import pandas as pd
writer = pd.ExcelWriter('trade_details.xlsx')
...
df.to_excel(writer,'Sheet1')
I'm using to_excel() method to transform DataFrame into Excel, but it
turns out to_excel() will overwrite the existing Excel instead add new rows in it, then I used to_csv('trade_detail.csv', mode='a') to gain that, I just wondering could to_excel do that? (like "mode='a'")
