Even though there is no direct
integration available to an accounting software like Quickbooks, you do
have the chance to export your orders via Tools/Order Export part of the
admin panel as an excel/text file or as an xml structure. You can then
upload this file to the accounting software you use.
It's also possible to match values to suit the requirement of the
receiving third party software. Also you can change the "Replacement
Title" part of the file according to the software requirements.