For the exporting order you need to follow some following steps:
- Need to authenticate company in authentication tab.
- After authentication you need select account for accounting in account tab e.g. asset account selection for accounting.
- Need to enable settings for product, customer and order export in basic(general) setting tab.
- Need to setup order export format and order status selection for order export in advance setting tab.
Finally you will get a export button on order listing page and also in order edit page.