I have heard a lot about this and wanted to dive in a little deeper.
Form npmjs.org, “Fast and powerful CSV parser for the browser that supports web workers and streaming large files. Converts CSV to JSON and JSON to CSV.”
1 million weekly downloads, 251kB in size.
It says it has “Reverse parsing (converts JSON to CSV)”
I believe it is used in conjunction with blob/createObjectURL method as seen here.
Parsing an existing CSV on upload to then import into database. Import is good to restore backup or move from one database to another.