Office 2019: Macintosh Download for Personally Owned Computers

Use Microsoft Office 2019 for Macintosh, a productivity suite of software for editing documents, creating spreadsheets, making computer slide shows, reading email and more.

Office 2019 for Mac contains Excel, OneNote, Outlook, PowerPoint, Word.

Step 1: Uninstall Existing Versions of Office

Step 2: Download Office

Last updated: 3/15/2019

Step 3: Unzip Office 2019 for Mac

Open your download folder and double-click to unzip it using the archive utility that comes with your operating system

Step 4: Install Office and Run the Serializer

  1. Double-click the unzipped folder mac-UB_Office2019
  2. Click the Installer.pkg file. Once the Installer is finished, you will be prompted to move it to the trash
  3. Click the Serializer.pkg file. Once the Serializer is finished, you will be prompted to move it to the trash

Step 5: Run Office Updates

Set Office to check for updates automatically. Updates will only be checked when you are connected to the Internet:

  1. Launch a Microsoft Office application
  2. From the Help menu select Check for Updates
  3. Under How would you like to check for software updates select Automatically Download and Install
  4. Click Check for Updates

System Requirements

  • Computer and processor:
    A Mac computer with an Intel processor
  • Memory:
    4 GB of RAM
  • Hard disk:
    10 GB of available disk space.
    HFS+ hard disk format (also known as macOS Extended or APFS)
  • Display:
    1280 x 800 or higher resolution monitor
  • Operating system:
    Office 2019 for Mac is supported on the three most recent versions of MacOS. When a new version of MacOS is released, the Office 2019 for Mac Operating System requirement becomes the then-current three most recent versions: the new version of MacOS and the previous versions. For the best experience, use the latest version of any operating system.
  • Browser:
    The current version of Safari, Chrome or Firefox.
  • Other:
    Installation requires a connection to the Internet; Internet functionality requires an Internet connection; Access to files stored on a SharePoint server requires connectivity to Microsoft Office SharePoint Server 2007 or later; Certain advanced functionality may require connectivity to a supported version of Microsoft Exchange Server (or Exchange Online) or Microsoft SharePoint Server (or SharePoint Online). See the Microsoft Support Lifecycle Policy site for supported versions of Exchange Server and SharePoint Server.

Who Can and Cannot Download Office from UB

This software is available to:

  • UB Students who have paid the Comprehensive fee
  • Faculty paid by UB
  • UB Faculty Student Association employees
  • UB Geographic Full time Faculty
  • UB State employee (UUP, CSEA, MC, PEF)
  • UB Research Foundation employees
  • UB Foundation employees
  • UB Medical residents 

This software is not available to:

  • Retirees
  • Employees on volunteer appointments with UB (paid by someone other than UB)
  • Alumni
  • Senior Auditors
  • Faculty, staff or students from SUNY schools other than UB

Terms and Conditions of Use

Microsoft Campus Agreement 3.5

Work at Home Acknowledgment

This acceptance form is valid for the Microsoft software products you intend to download, which shall be referred to collectively herein as the “Software”. Software is made available to you because The State University of New York at Buffalo (UB) has purchased license coverage for the Software through its Microsoft Campus Subscription Enrollment effective October 1, 2010. UB is ordering the right for you to use the Software for Work-related purposes at home under its Microsoft Campus Subscription Enrollment. You are not licensed to use the Software at home for personal purposes. You do not own the license, rather you are authorized to use the Software pursuant to the terms and conditions of the licensing agreement. You will be required to remove the Software from your home machine immediately if UB decides to no longer participate, or earlier if your UB employment ends. Please note that non-knowledge workers such as maintenance, groundskeepers, cafeteria and mailroom, etc. are ineligible for Work at Home rights if they were not included in the Full-Time Equivalent (FTE) employee calculation for UB.

You will adhere to the following policies:

  • Read and abide by the license agreement(s) associated with this Software. Understand that Microsoft provides no technical support in association with your work-at-home use.
  • Understand the minimum specifications to run the Software are listed at Microsoft's Website.
  • Remove the Software from your home machine immediately upon the earlier of (a) expiration of the licensed period specified above or (b) the end of your employment with UB.
  • Understand that you are not licensed to use the Software for personal purposes.

By clicking on the button below and proceeding with your download, you are acknowledging acceptance of the terms and conditions of the Microsoft Work at Home Agreement listed above.


  • By downloading the software, you confirm you have read the Terms and Conditions and agree to and acknowledge the terms of the license agreement and terms and conditions.
  • You understand that sharing the software with others is an offense.
  • This software cannot be downloaded and stored in a shared file space.
  • This software is licensed for work-related purposes.

Common Questions

I downloaded Microsoft office for Mac 2019.  I got it installed OK, but it is saying No License Found. Then "Buy Office" or "use Another Account"?

You need to run the serializer file that was packaged with the installer file before you can use Office 2019 (see installation instructions in Step 3, above).

Why am I being prompted for a product key?

Remove or uninstall trial or demo versions, or versions you installed with a license key before you download and install Office from UB. Installing over a trial or demo or a version licensed with a key prompts you for a product key for the UB version.

What do I do if I get an Unidentified Developer Error when trying to install?

See how to fix the "Unidentified Developer" error.

When I go to open the download, why does it just keep opening a new file instead of installing the software?

Sometimes Chrome says the file has finished downloading, but it hasn't. When you go to install the software, the download is incomplete and won't install. Try downloading Office with a different browser, like Safari, and then installing it.

If I delete a previous version of Office, do my files get deleted?


Can I keep an older version of Office and install Office 2019 for Mac?

You cannot have both Office 2019 and Office 2016. While you can have both Office 2011 and Office 2019, Microsoft does not recommend it.

May I download Office more than once?


Can I order a physical copy of Office media?


How long can I use Office?

Your Office download will continue to work the entire time you are at UB. When you are no longer a current student, faculty or staff member, you must remove Office from your computer.

Still need help?

Contact the UBIT Help Center.