Office 365 - What version of Microsoft Office/Outlook am I using?

This document describes how you can determine the version of Office you have installed on your computer. These instructions assume you already have an Outlook profile/account configured. If you do not have Outlook configured, you can substitute Outlook with any of the other Office applications in the steps below.

Important: To get the latest features/updates, it is recommended that you install the Microsoft Office 365 ProPlus/Subscription/enterprise version of Office/Outlook. The Professional Plus/2016/2019/Volume License version is only receiving security updates.

Select your operating system:


Windows OS

  1. Start Outlook/Word or any other Microsoft Office application.
  2. On the File menu, click Office Account or Account.
  3. Under Product Information, you'll see the general version of Office installed on your computer.
    Microsoft 365 product information
    This version was downloaded/installed from your Office
    365 subscription - you must have an active Office 365
    ProPlus license/subscription
    to run this version.
    Office Product Information
    This version was downloaded/installed from Campus Software Library (CSL).
  4. For complete version, click About Outlook/Word. A new window will appear. The top will display the build information and if the client is 32- or 64-bit.

    detailed version

  5. Click left arrow to return to Outlook/Word.

Mac OS

  1. Start Outlook/Word or any other Microsoft Office application.
  2. From the Outlook menu on the Apple menu bar, select About Outlook.
  3. You will be presented with the 'About Outlook/Word' screen:
    Microsoft 365 product information
    This version was downloaded/installed from your Office 365
    subscription - you must have an active Office 365 ProPlus
    license/subscription
    to run this version.
    Outlook_Mac_CSL2.png
    This version was downloaded/installed from Campus Software
    Library (CSL).
  4. Click red X to return to Outlook/Word.

See Also: