IRI CellShield EE (Enterprise Edition) is the full-featured, professional data masking package for Excel 2010 and later workbooks in your LAN, and MS repositories. Discover, report, protect, and audit PII in cells across multiple sheets at once using encryption, masking, and pseudonymization functions to comply with data privacy laws.

UPDATE: CellShield version 2.0 has been released and includes many new features and fixes from the version shown in this video.