Office 2021 is the latest version in the Microsoft Office family. Microsoft focuses entirely on distribution with online installers, and makes it extremely hard to find usable disk images for offline installation. This article should have been released a long time ago, and finally, here it comes.
Office 2021 Test Drive
Unbelievable, but Microsoft has never given out trial versions for Office 2021. The only Office Trial version currently available is Office 365.
Purchase Office 2021
Purchase links will be added later.
Download Office 2021 Backup Images from Microsoft
The following links point to the official download server officecdn.microsoft.com. Instead of ISO format, they come as IMG images. These files are pure backup media, and can't be installed without a retail product key.
The IMG images are not the same as the "Single Image" downloads that used to be available from Digital River, but offline versions of the streaming "Click-to-Run" version, with all disadvantages associated with that. If your required download is not included here (such as Office 2021 Professional Plus) please proceed to the download instructions here.