What is office 2021?

As an AI language model, I don't have information about unreleased products yet. However, here's some speculation based on previous releases:

Office 2021 is expected to be the next version of Microsoft's popular productivity suite, following Office 2019. It will likely include software such as Word, Excel, PowerPoint, and Outlook, among others.

It is expected to be available for both Windows and Mac operating systems, and may also include a cloud-based version similar to Office 365.

Office 2021 is expected to have new and updated features such as improved collaboration tools, better integration with Microsoft Teams, and enhanced security features. It's also possible that it may include new artificial intelligence and machine learning tools to help users automate and streamline their work processes.

Microsoft typically releases new versions of Office every three years, so it is possible that Office 2021 could be released by late 2021 or early 2022. However, this has not been officially announced.