It was glorious.
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Modern software relies on 64-bit optimizations and instructions missing from older Intel Core Solo or Core Duo processors found in early Lion-compatible Macs. microsoft office for mac os x lion 1075 2021
Running in 2026 presents a challenge: Apple released Lion in 2011, and Microsoft has long ceased support for both the OS and the Office suites designed for it. If you are operating an older Mac—such as a 2011 MacBook Pro or iMac—stuck on this version, you cannot natively run modern Microsoft 365 or Office 2021 .
Here is a practical pathway for Lion users who need office functionality: It was glorious
You can access free, stripped-down versions of Word, Excel, and PowerPoint via a web browser.
The base installer for Office 2011 (version 14.0.0) is highly unstable on OS X 10.7.5. You must manually apply updates to make it usable. If you share with third parties, their policies apply
Insert the disc or double-click the downloaded .dmg / .iso file to mount it.
Office 2011 is the best and most stable choice for OS X Lion 10.7.5. Includes Word, Excel, PowerPoint, and Outlook.