This document provides step-by-step instructions for setting up a new company and maintaining customer, vendor, and default customer information in Peachtree accounting software. It outlines 7 steps to set up a new company, including entering company information, selecting an accounting method and period, and finalizing the setup. It then describes maintaining customer information by entering details into various tabs, maintaining vendor records through similar tabs, and setting default customer information options. The document is intended as a user guide or tutorial for Peachtree.