With Office OwnerGuard you can: Lock your secure Excel, Word, PowerPoint Documents ( xls, xlsx, xlsm, xlsb, doc, docx, ppt, pps, pptx ) to specific users, computers or USB drives. Define High Security Expiration Date or Working Duration for your DRM protected Excel, Word, PowerPoint Documents. Use full features of Microsoft Office Excel, Word, PowerPoint applications for protected documents. Control and apply all required limitations for your users using a very small user side DRM manager component ( OwnerGuard License Manager ). Minimize your users DRM hassles by letting them access your DRM protected documents offline. Distribute and Sell your DRM protected documents easily while you've got full control over them. Cooperate in Creating, Editing or distributing Office documents while OwnerGuard protects ownership rights for owner(s). Gain full control over your sensitive documents usage rights.