The difference between CSV and excel:
1. CSV is a plain text file, excel is not a plain text, excel contains a lot of format information in it.
2. The volume of the CSV file will be smaller, making it easier to create, distribute, and read, and is suitable for storing structured information, such as record export, traffic statistics, and so on.
3. The default opening method of CSV file on windows platform is excel, but its essence is a text file.