Mbox-short.txt data set creation

This question is out of curiosity.

How is the email data set in text file created in the first place, ie how is the data stored in text file?
Not by writing i suppose.
Is that part of data administration & all?

Thanks.

Hi, Abhinav.

Good question!

This is a sample datasets of MBOX. used for holding collections of email messages.
You can explo

https://www.loc.gov/preservation/digital/formats/fdd/fdd000383.shtml

All the best!