Fix Office 2010 for Mac Not Working on 64-bit macOS
Question details
Older versions of Microsoft Office for Mac are no longer accessible after migrating to a newer iMac running a 64-bit macOS.
- Product
- Microsoft Office for Mac
- Device & OS
- macOS
- Scenario
- Upgrading to a newer Mac computer running a modern 64-bit operating system like macOS Catalina or newer.
- Observed behavior
- The Office application fails to launch or displays an incompatibility warning because 32-bit apps are no longer supported on the system.
Check your current macOS version by clicking the Apple menu and selecting 'About This Mac' to confirm you are running macOS 10.15 (Catalina) or later, which only supports 64-bit applications.
Upgrade to a 64-Bit Compatible Version of Microsoft Office
Purchase and install a newer, 64-bit version of Microsoft Office to restore full functionality on modern Mac computers.
Apple completely transitioned to a 64-bit architecture starting with macOS Catalina. Since older Mac versions of Microsoft Office are 32-bit applications, the operating system physically cannot run them anymore.
To resolve this, you must upgrade your Office suite to a modern release that includes native 64-bit support.
Visit the official Microsoft Store to purchase a current Microsoft 365 subscription or a standalone Office license compatible with macOS.
Log into your Microsoft account on your Mac, navigate to your subscriptions, and download the 64-bit installer package.
Open the downloaded .pkg file and follow the on-screen instructions to install the updated suite on your Mac.
Run Older macOS via a Virtual Machine (Workaround)
If you absolutely must use the older version of Office, you can emulate a 32-bit capable macOS environment using virtualization software.
Use WPS Office for Mac as Your Free 64-bit Alternative
If you don't want to purchase an expensive new license just to open your documents on a new Mac, WPS Office is the perfect solution. It offers native 64-bit support for modern macOS versions, is incredibly lightweight, and completely free to use.
- 1. Download WPS Office for Mac: Visit the official WPS website and download the free Mac installer.
- 2. Install the App: Open the downloaded .dmg file and drag the WPS Office icon into your Applications folder.
- 3. Open Your Old Files: Double-click your existing Office documents to instantly open and edit them in WPS Office without losing formatting.
Frequently Asked Questions
Can I force a 32-bit version of Office to run on a 64-bit macOS?
No. Apple completely removed the framework required to run 32-bit applications starting with macOS Catalina (10.15). The operating system physically cannot execute the code of older Office versions.
Are my old Word and Excel files lost if the app won't open?
No, your documents are completely safe and intact on your Mac's storage. You simply need a compatible 64-bit application, such as a newer version of Microsoft Office or a free alternative like WPS Office, to open and edit them.
Is there a free update available from Microsoft for older Office versions?
No, older versions like Office 2011 or earlier have reached their end-of-life support. Microsoft requires purchasing a new license or a Microsoft 365 subscription to get the 64-bit compatible versions.
