HIPAA-Compliant Patient Data Anonymization Macro

Develop a VBA macro that automatically redacts personally identifiable information (PII) in medical spreadsheets while preserving critical data points. The macro must selectively mask patient names, social security numbers, and contact information using advanced encryption techniques. Implement multiple security layers including randomized masking, audit logging, and reversible encryption that meets HIPAA compliance standards. Include error handling for different data formats and provide a comprehensive reporting mechanism for tracking anonymization processes.