Export all active customer and unpaid invoice data

SOLVED

I am trying to figure out the easiest way to export current customers and unpaid invoice data.  I need an excel or CSV containing a listing of all open customer invoices.  My goal is to be able to share this data with a third party payment processing company so customers can go online to make a credit card payment.  In order to do so, I need to extract all open customer invoices.  Does anyone have a good approach to retrieving this data?  I see there is a developer API, possible use of Crystal Reports, and perhaps other options?  I would greatly appreciate any info on this topic you can share as I am not familiar with Sage 50 accounting (peachtree) and am doing some research to determine options.