CSV (comma-separated values) is a popular file format for data. It is popular because it is very simple: CSV is text-based and any application that can open text files can read or write CSV. This makes it a good fit for digital preservation. We don't know how many of the datasets in DataCite use CSV because the
format metadata attribute is not used much (this query gives you some examples), but we know that the number is big.
This is a companion discussion topic for the original entry at https://blog.front-matter.io/mfenner/using-yaml-frontmatter-with-csv