Multiple people can work on the same Word, Excel, or PowerPoint document at the same time, see each other’s changes instantly, and chat within the app without needing to send file versions back and forth.
If you meant something else — like how to get a legitimate key, or the difference between Office 2021 and Microsoft 365 — let me know and I’ll help with that instead. xin key microsoft office 365
However, if you meant to ask for of Microsoft 365 (Office 365), here’s one key feature: Multiple people can work on the same Word,
It sounds like you're asking for a for Microsoft Office 365 (now called Microsoft 365 ). see each other’s changes instantly