Comprehensive Excel-to-Payroll System Integration

I require a skilled integrator to seamlessly connect our existing Excel spreadsheet-formatted payroll system with a new payroll system. The details set to be transferred are Employee Information, Salary Details, and Attendance Records. This integration should be done in a manner that ensures a monthly data transfer from the Excel spreadsheet to the new payroll system.

Ideal Skills and Experience:
- Expert-level understanding of Excel and payroll systems
- Prior experience in integrating Excel with other systems
- Knowledge of data migration and data integrity
- Proficient with scheduling automatic data transfers
- Understanding payroll related data security protocols