Office Installation Errors

How to Download Microsoft Office 2019 for macOS Big Sur

Steve KSteve K Oct 7, 2026 870 views

Question details

The user needs to download and install a version of Microsoft Office Home and Student 2019 that is compatible with an older MacBook running macOS Big Sur.

How to Download Office 2019 for macOS Big Sur
Product
Microsoft Office 2019
Device & OS
macOS Big Sur
Scenario
Installing Office on an older Mac where the latest Microsoft updates require macOS Monterey or a newer operating system.
Observed behavior
Recent Microsoft Office installers block installation on macOS Big Sur, prompting the user to upgrade their OS to macOS Monterey or later.
Before you start

Before installing an older version of Office, ensure you have your original Office 2019 product key or Microsoft account login details ready, and verify whether your license was purchased directly from Microsoft or through Apple.

Solution 1Recommended

Install the Compatible Version 16.77 Office Package

Use the official Microsoft installer for version 16.77, which is the last release fully compatible with macOS Big Sur and works with Office 2019 licenses.

Microsoft only supports the three most recent versions of macOS for its latest Office updates. To install Office on Big Sur, you must use a specific older build (version 16.77.23091003) that supports this operating system.

1
Download the installer

Click the official Microsoft download link for version 16.77 (Microsoft_365_and_Office_16.77.23091003_Installer.pkg) to save the package to your Mac.

2
Launch the setup

Navigate to your Downloads folder and double-click the downloaded .pkg file to open the installation wizard.

3
Complete installation

Follow the on-screen prompts, agree to the software license agreement, and enter your Mac administrator password when prompted to install the software.

4
Activate your license

Open any installed application, such as Microsoft Word, and sign in with the Microsoft account associated with your Office Home and Student 2019 purchase to activate it.

Install the Compatible Version 16.77 Office Package
Installer Naming Convention: Although the downloaded file is named 'Microsoft 365 and Office', it functions as a unified installer. It will correctly recognize and activate your standalone Office Home and Student 2019 license once you sign in.
Free Microsoft Office alternative

Use WPS Office for Mac on Older macOS Versions

If you are struggling to install Microsoft Office on macOS Big Sur or don't want to deal with unsupported older installers, WPS Office offers a powerful, lightweight alternative. It runs smoothly on older Macs while providing excellent compatibility with Microsoft Word, Excel, and PowerPoint files.

  1. 1. Download WPS Office: Visit the official WPS website and download the Mac version.
  2. 2. Install on Mac: Open the downloaded file and drag the WPS Office icon into your Applications folder.
  3. 3. Start editing: Launch WPS Office from Launchpad and instantly open your existing Microsoft Office files.
Fully compatible with Microsoft Office formats (.docx, .xlsx, .pptx)Lightweight architecture runs efficiently on older Mac models without laggingAll-in-one suite combining Document, Spreadsheet, and Presentation tools in a single appFree to download and use without a mandatory subscription
microsoft office alternative - wps office

Frequently Asked Questions

Why can't I install the latest Office version on macOS Big Sur?

Microsoft's policy is to support only the three most recent major versions of macOS. Since the release of newer macOS updates like Sonoma and Ventura, Big Sur is no longer supported by the latest Microsoft 365 and Office installers.

Is it safe to download older Microsoft Office .pkg files?

Yes, it is perfectly safe as long as the installer package is downloaded directly from official Microsoft content delivery servers (URLs starting with officecdn.microsoft.com).

Will Office 2019 still receive security updates on macOS Big Sur?

No. Older versions of Office that are compatible with macOS Big Sur, such as version 16.77, no longer receive new feature updates or security patches from Microsoft.

Can I use Microsoft 365 online if I can't install the desktop app?

Yes, you can always access the web-based versions of Word, Excel, and PowerPoint via your browser at office.com, regardless of your macOS version.