Acrobat has a built-in method for exporting data on the More Menu in the "Prepare Forms" tools.
It has some limitations, for example, its a one shot action. You select the forms for export and it creates a CSV file. There is no built-in method for updating the CSV. Another limitation is that it won't export data from some protected or signed files.
The only other option is a 3rd party tool or create your own.
I've created several JavaScript automation tools for importing and exporting data. You can see some of them here:
https://www.pdfscripting.com/public/Automation-Tool-Descriptions.cfm
and here:
https://www.pdfscripting.com/public/Form-Data-Handling.cfm
I've also created an Action (batch process) for exporting to a CSV file. This tool also keeps a log of all imported files and can update the CSV with new files at anytime. Contact me if you are interested.
