Hi Nelson,
Lots of ways to tackle this one. For importing, I invite you to consider our Excel Updater solution, which is designed to update custom parameters. For exporting, you could write a report with the columns of interest, then export them to Excel (or pdf, or text).
Alternatively, you could build a calculated custom parameter intended for copy/pasting ALL of the values into an external document.
For example, if you had a form with (only) three text fields (e.g. Street, City, State), you could add a calculated text parameter called "Copy Paste All Values" with a formula of CONCAT(Street," | ",City," | ",State). It would take some care and feeding, but might make it (then) easier to copy/paste, when the time comes.
Regards,
Doug