To contact QuickBooks File Doctor, call their dedicated File Doctorline at 877-898-0542. The support team is available to assist with any payroll-related questions or issues, including setup, troubleshooting, and processing. Be ready to provide your account details for quicker service. For additional resources, you can visit the QuickBooks website or explore FAQs, live chat, and community forums for further assistance with QuickBooks File Doctor.