Checkout Fields Manager - Importing and Exporting Fields
With the Checkout Fields Manager, checkout fields can be exported for backup or moving to another store, and then can also be imported. This can save a great deal of time when replicating a setup, or restoring after data loss.
Once your form is built you may go to Downloads → Tools → Customer Field Manager and export your form in .json format. You may also import a previously exported .json file to either restore or recreate a form.