Select your MS Office application from the list below. Printer-friendly version Password Protecting and Encrypting MS Office Files (Windows) Password Protecting and Encrypting MS Word Files (Mac) Password Protecting and Encrypting MS Excel Files (Mac) Password Protecting and Encrypting MS PowerPoint Files (Mac) Book traversal links for Password Protecting and Encrypting MS Office files ‹ Password Protecting and Encrypting Adobe PDF files Up Password Protecting and Encrypting MS Office Files (Windows) ›