Can you explain what is meant by a file format?

A file format is a file that stores data in a specific structure or format understandable by software. The file format defines how data is organized within the file, what data types are used, and how to interpret them.

For example, text files (.txt) contain plain text, while JSON format files (.json) store data as structured key-value pairs. In Python, when working with files, it is important to know the format to read and write data correctly using appropriate methods and libraries.