ARM or 32-bit?

[slamroc]

I noticed in the Task Manager that Office software - like Outlook and Word are listed as 32-bit. Is this true? I thought the Microsoft apps were made with ARM variants... could I possible have the wrong ones installed?

 

[bradavon]

Microsoft Office 2010 or newer is available in x86 32-Bit and x86 64-Bit versions. There's no ARM64 version. So yes this is correct.

I have read Office 365 32-Bit has ARM components. This is probably what you're thinking of and why it runs so well.

 

[spookyactionGB]

Modern builds of Office are part of the UWP Universal Windows Platform but they are still not native ARM64.

https://docs.microsoft.com/en-us/windows/uwp/get-started/universal-application-platform-guide

 

[bradavon]

Microsoft 365 presents itself as x86 32-Bit for compatibility but is already ARM64. I'm unsure if the same is true for the 64-Bit version when 64-Bit support comes to Windows on ARM.

Expect older Office versions to be emulated. There's no way Office 2010 won't be emulated.

 

[Cruncher04]

What you cannot see is, that they are using CHPE technology for Office, which is essentially ARM64 code embedded into an x86 process.