Knowledge workers typically rely on static files—presentations, memos, spreadsheets, and reports—to share information, but AI is now making it possible to build richer, more dynamic alternatives. OpenAI's newly released "Sites" feature in Codex exemplifies this shift, enabling professionals to create living documents that can be updated, shared as interactive links, and accessed collaboratively rather than distributed as static attachments. The practical applications span numerous workplace scenarios: instead of emailing a static presentation deck, teams can build an interactive dashboard that updates in real-time; traditional memos can become collaborative documents with embedded data visualizations; spreadsheet reports can transform into web-based tools with dynamic filtering and calculations. Training materials, proposals, and other common business outputs all benefit from this move toward interactive, shareable formats that remain current and allow feedback without version control headaches. This represents a fundamental shift in how knowledge work gets packaged and shared. Rather than treating documents as finite deliverables, AI-powered tools encourage treating them as living, updatable resources that serve multiple stakeholders simultaneously.