This product is a brand new and genuine digital activation code for Microsoft Office Professional Plus 2021.  
This product works on Windows 10, Windows 11 and Windows Server 2021.
This product is not suitable for Mac. If you are looking for an Office package for Mac, we recommend Office Home & Business 2021 for Mac.
Office Professional Plus 2021 includes Access, Excel, OneNote, Outlook, PowerPoint, Publisher, Word, and Skype for Business.
There isn’t a new 2021 version of OneNote, but a version of OneNote is installed with Office 2021. For more information, see Deployment guide for OneNote.
All products in the Office 2021 are available in both 32-bit and 64-bit versions. We recommend 64-bit on computers that have 4 GB or more of memory. But you should assess application compatibility and other factors that might require you to use the 32-bit version. For more information, see Choose between the 64-bit or 32-bit version of Office.
After downloading the installation files, internet access isn’t required to install, activate, or use Office 2021.
There isn’t a 2021 version of SharePoint Designer or InfoPath. The last version for both products is 2013.