Yes, pretty much all formatter snaps tend to collect all of their input and write a single binary output file.
Sorry, that’s not directly supported at the moment. To write a CSV file with a single row in it, you could create a child pipeline with the CSV Formatter and FileWriter and execute it with PipeExec.
The most common case for a CSV file (and JSON/XML/etc…) would be for it to have multiple rows/records. So, the formatter snaps write all their inputs to a single file. Some formatters (like JSON/XML) support writing a single output document, since those formats are more likely to have cases where that is needed.
