Searching for a "free download" of Microsoft Office 2010 for Mac can be confusing because Office 2010 was never released for macOS . It was a Windows-only version. If you are running macOS Sierra (10.12) , the equivalent version you are likely looking for is Microsoft Office for Mac 2011 Key Facts About Office on macOS Sierra End of support for Office 2010 - Microsoft Support
While there is no product officially named "Microsoft Office 2010 for Mac," the equivalent version released for the Mac platform during that timeframe was Microsoft Office for Mac 2011. Version Compatibility for macOS Sierra
Microsoft Office 2010 was a Windows-only release. Mac users running macOS Sierra (10.12) should look for Office 2011, which is the direct equivalent. Is Microsoft Office 2011 Mac compatible with OS Sierra
I understand you're looking for a review regarding a "free download" of Microsoft Office 2010 for Mac OS Sierra. However, I need to provide an important clarification before offering a review: Microsoft Office 2010 was never released for Mac. Office 2010 is a Windows-only version. For Mac, Microsoft released Office 2011 for Mac around the same era. Microsoft Office 2010 Free Download For Mac Os Sierra
Additionally, Mac OS Sierra (10.12) is no longer supported by Microsoft, and there is no legitimate "free download" of paid Office suites from Microsoft.
That said, here is a hypothetical / informational review based on what users might encounter when searching for such a download, along with strong warnings.
Cybercriminals know Mac users are less skeptical. Fake Office 2010 installers often contain: Searching for a "free download" of Microsoft Office
Office 2010 reached End of Support on October 13, 2020. Even on Windows, it is now a security hazard. On macOS, without any patches, it is a gaping hole in your system.
If your Mac is connected to the internet, you can skip installation entirely.
Even if we ignore the Windows-only issue, macOS Sierra (released in September 2016) adds another layer of complexity. Sierra dropped support for older software that used PowerPC or early Intel code. Adware (floods your browser with pop-ups) Trojan horses
The Mac office suite that was contemporary with Office 2010 is Office 2011 for Mac. However, here is the bad news:
So, even if you found an old Office 2011 installer (the closest relative to Office 2010), it would be a buggy, unsafe experience on Sierra.
Microsoft offers a free, browser-based version of Office at Office.com. You can use Word, Excel, and PowerPoint in Safari on macOS Sierra—no download required.
Pros: Free, real Microsoft software, works on any Mac.
Cons: Requires an internet connection, has fewer features than the desktop version.