To export your data to your accountancy software your account needs to be integrated first.
This can be done by logging onto the main Receipt Bank website and accessing your 'Account Settings' menu in the top right.
Now, open the 'Integration' tab, click on the link to change your add-on and select it from the list. Then follow the steps to finish integration.
When integrated you can publish your items from the Mobile app once they are 'Ready for Export'. This can be done by:
iOS [Apple]: Swiping left-to-right on the item in the Inbox
Android: Pressing into the item details page and pressing the 'Publish' button.