I’ve come here to ask why CSV is being used? CSV is easy for humans to read, and works in almost any tool. It’s Excel friendly (yes Excel has some terrible CSV/

I’ve come here to ask why CSV is being used? CSV is easy for humans to read, and works in almost any tool. It’s Excel friendly (yes Excel has some terrible CSV/data mangling practices). End of the day, if the format needs to be used by arbitrary third parties who maybe/probably have no technical experience beyond excel, then CSV is the best option. If human readable and Excel support are not required, then by all means Parquet is the winner. TLDR: The best format depends on how you need to use the data.