Confusion about how glob works

The lesson Practical Data Cleaning says that we can use glob to select files using regular expressions. Yet in the example, they say that:

glob.glob(“file*.csv”)

selects files that start with “file” and end with “.csv”, yet according to regular expressions, wouldn’t this select files like “fil.csv”, “file.csv”, “filee.csv”, etc. And not files like “file_number_4.csv”?