Pandas - Write to Exisitng Excel File - Sorted List

[Vysero]

Well without seeing the error its hard to say what the problem is. I would start debugging by checking the type of what your trying to write to make sure its what to_excel() function is expecting. I am not sure what exactly it is you are trying to do. It seems as thought you are attempting to take the Column names from python.xlsx, sort them and write them to a different excel file; is that correct?

I have never used Pandas or messed with excel files before but I can tell you this much; to_excel() is expecting type ExcelWriter ie:

# Specify a writer
writer = pd.ExcelWriter('example.xlsx', engine='xlsxwriter')

# Write your DataFrame to a file     
yourData.to_excel(writer, 'Sheet1')

# Save the result 
writer.save()