Learn how to find your Office product name and version number in any Office application, such as Word or Excel. See also how to identify the bit-version and the type of installation.

Learn how to find your Office version and information by opening a Word document and clicking File or Word menu. See the difference between Mac 2016 and Mac 2011 versions.

Learn the difference between Microsoft 365, a subscription service with the latest apps and cloud storage, and Office 2021, a one-time purchase with no upgrades. Find out how to check your version of Office and how to install Microsoft 365 on your devices.

From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options.

Find out which versions of Office are fully tested and supported on Windows 10. Learn how to upgrade to the latest version of Office or check compatibility before upgrading to Windows 10.

The 64-bit version is installed by default unless Microsoft 365 or Office detects you already have a 32-bit version of Microsoft 365 or Office (or a stand-alone app such as Project or Visio) installed. In this case, the 32-bit version of Microsoft 365 or Office will be installed instead.

You’ll see the services that you're licensed to use, such as the latest desktop version of Microsoft 365, SharePoint in Microsoft 365 or OneDrive for work or school, and Exchange Online. You’ll also see the version of the service you're using, such as Plan 1 or Plan 2.

Choose between Microsoft 365 Personal (for one person) or Microsoft 365 Family (which you can share with your family ). Buy a one-time purchase version of Office 2021. Get the newest non-subscription version of Office such as Office Home & Student 2021 or Office Home & Business 2021.