Microsoft Security Update Brings 64-Bit Support to All Mac Office Apps - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Microsoft Security Update Brings 64-Bit Support to All Mac Office Apps

by

Microsoft today release a new update for its Office 2016 for Mac apps, introducing small performance improvements, bug fixes, and 64-bit support across the Office lineup.

Outlook, Excel, Word, PowerPoint, and OneNote have all adopted the 64-bit runtime environment to enable better performance and "new innovative features." 64-bit support has previously been available to Microsoft's "Office Insider" beta testers but is rolling out to all users today.

officeformac
Microsoft Office users who do not use add-ins will be unaffected by the change, while those who do will need to update their add-ins to 64-bit versions as add-in developers release the necessary updates. All add-in developers have had several months to make the updates thanks to the beta testing period, so the transition should be seamless for most end users.

Apple's Mac operating system has supported 64-bit applications for many years, but prior to 2016, Microsoft continued to offer 32-bit Office for Mac apps.

Microsoft Office for Mac is available through an Office 365 subscription or as a standalone purchase from the Microsoft website. Office 365 costs a minimum of $69.99 per year while the standalone version of Office 2016 for Mac is priced at $149.99.

Top Rated Comments

Chortos-2 Avatar
131 months ago
Apple's Mac operating system has supported 64-bit applications since OS X Lion was released in 2011
Uh, no, 64-bit GUI applications have been supported since Leopard in 2007 (and CLI applications even earlier, since Tiger in 2005).
Score: 8 Votes (Like | Disagree)
131 months ago
The 64 bit Office 2016 apps load noticeably faster on my computers.
Score: 7 Votes (Like | Disagree)
Intell Avatar
131 months ago
Every update breaks something fundamental. Microsofts quality control on their Mac office product is shocking and makes me anxious about any update.
The Office team at Microsoft is actually very receptive of problems and works hard to correct them. The Office 2016 has come a very long way over the past year. They're much better than other large companies such as Adobe, which is also slowly making steps to fix some of its problems.
Score: 5 Votes (Like | Disagree)
131 months ago
The 64 bit Office 2016 apps load noticeably faster on my computers.
Thank the maker, if this is true across the board!

Office opens painfully slow and is by far the slowest opening set of apps I have.
Score: 3 Votes (Like | Disagree)
Starflyer Avatar
131 months ago
Where is dark mode?
Score: 3 Votes (Like | Disagree)
131 months ago
Every update breaks something fundamental. Microsofts quality control on their Mac office product is shocking and makes me anxious about any update.
Score: 3 Votes (Like | Disagree)

Popular Stories

iOS 27 Next to iPhone

Here's When iOS 27 Rolls Out Today in Every Time Zone [Update: It's Out]

Sunday September 13, 2026 3:00 am PDT by
Update 10:04 a.m.: iOS 27 is rolling out now, though it may take a bit for all users to see it, so keep checking! Apple is about to release iOS 27, which will finally deliver more advanced Siri AI capabilities as well as a variety of other refinements, improvements, and new features to iPhones. It's Apple's biggest software update of the year, and Apple announced at Wednesday's iPhone event...
iOS 27 Icon iPhone

iOS 27 Available Now With These 8 New Features

Monday September 14, 2026 9:00 am PDT by
Update — 10 a.m. Pacific Time: Apple has released iOS 27. During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14. iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update. Below, we have highlighted eight new features and...
Apple iCloud Plus expansion hero

iCloud+ Now Includes Apple TV, Apple Arcade, and Curated Apple Music Stations in Over 100 Countries

Tuesday September 15, 2026 1:43 am PDT by
Apple today announced a new subscription initiative that turns paid iCloud+ subscriptions into a broader services bundle in more than 100 countries. In select countries, Apple says every paid iCloud+ plan, including the cheapest 50GB tier, now includes Apple TV and Apple Arcade "at no additional cost," while family sharing extends the storage, TV and Arcade access to up to five people....