Over-13-years old Excel already opened delimited flat files natively, and it threw warnings when you opened a .csv file that exceeded the worksheet row limit. S

Over-13-years old Excel already opened delimited flat files natively, and it threw warnings when you opened a .csv file that exceeded the worksheet row limit. Someone in the distant past was just clever enough to hack together the script (with no error handling) without being curious enough to know it wasn't necessary in the first place.