Microsoft 365 and Office 2019 support for Apple Silicon

This article was last updated on November 17 at 12:00 PM Pacific Time.

On November 10, 2020, Apple announced the availability of new Mac devices based on a custom architecture known as Apple Silicon. This article outlines the support of Microsoft 365 and Office 2019 on Apple Silicon devices.

The latest release of apps including Word, Excel, PowerPoint, Outlook, OneNote, and OneDrive can be installed on devices that are based on the Apple Silicon architecture. For the best experience, install the November 2020 release (build 16.43), or later. This release of Office includes the latest optimizations for macOS Big Sur, which is the first operating system to support Apple Silicon.

Apple Silicon processors can run apps that are compiled for the Intel chipset through a software technology known as Rosetta 2. This translation layer is automatically enabled in macOS Big Sur and provides users with access to all features in Microsoft's apps including support for third-party add-ins. End-users and business customers can use existing methods to install and deploy Office.

As demonstrated at Apple's Worldwide Developer Conference (WWDC) in June 2020, we've already started the process of moving Mac apps to universal binaries. In the future we will natively support both Apple Silicon and Intel chipsets within the same executable.

Common questions

Which Office features are not available when running on Apple Silicon under Rosetta 2 translation?

There are no feature differences.

Are there any performance considerations for running Office under Rosetta 2 translation?

The first launch of each Office app can take longer as the operating system has to generate optimized code for the Apple Silicon processor. Subsequent app launches will be fast.

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