By Dina Bass and Emily Chang
Microsoft Corp.’s effort to overhaul its entire lineup with OpenAI technology has spread to one of the company’s oldest and best-known products: its Office apps.
The software, including Excel, PowerPoint, Outlook and Word, will begin using OpenAI’s new GPT-4 artificial intelligence platform, Microsoft said on Thursday. AI-powered assistants called Copilots will be able to generate whole documents, emails and slide decks from knowledge the software has gained scanning corporate files and listening to conference calls. The technology will debut in the coming months, and Microsoft is already testing it with 20 companies, including eight in the

)