eBay exporter

Hi, The project details are as follows: Output values from eBay purchases directly to our store spreadsheet. i.e. After a buyer purchased one of our items on eBay, values such as - Buyer's Name, Buyer's EBay ID, Address, Email address, Phone number, Purchasing Date, Sold Value, Ebay Fee - are automatically exported to our stock spreadsheet. New entry is added for every new buyer on our existing spreadsheet. Software/exporter must be able to automatically mine the required data from eBay and transfer this over to our spreadsheet. All to be done automatically! Not after someone to import the data manually.