This is similar in intent, to the feature request to export to a script that creates the source FL document.
We’re able to Import from a csv. But there doesn’t seem to be an option to Export an FL document to a csv, which can be used as another example, when reading the Format documentation. Or as a template.
The problem is that there is no “single right way” to export to CSV. Any way we implemented would not make many people happy. The existing CSV import is also in a similar situation, but we decided to both provide it and provide the code in the Scripting Guide so people could make their own custom import functions.