I've write an application in python that saves informations on a txt file, but this is pretty slow, what type of file should I use for saving informations? And can I use the open function or I have to use another to make an high-efficiency transfer of data?
Thanks in advance.
I write this answer to mark the question as SOLVED, see the first comment to get the real answer.
What type of file should I use for saving informations for my applications?