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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 Office 365 ProPlus/Subscription 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 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.
    Office 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. 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.

Mac OS

  1. Start Outlook 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' screen:
    Outlook_Mac_OWA.png
    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.

See Also:




Keywords:microsoft office365 o365 for mac windows version use how to tell client about information web app owa browser firefox internet explorer ff ie chrome mozilla google office outlook word excel powerpoint   Doc ID:45506
Owner:Ara M.Group:Office 365
Created:2014-12-08 17:30 CDTUpdated:2019-07-12 11:43 CDT
Sites:DoIT Help Desk, DoIT Tech Store, Office 365
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