While you cannot "freely" download a full, licensed version of Office from Microsoft without a subscription or product key, you can still access the installer files if you have a valid license: Microsoft Office 2016 and Mac OS X 10.11.6 El Capitan
A: No. The installer will refuse to run. Office 2019 requires macOS 10.12 (Sierra) or higher.
Finding a working installer for El Capitan requires looking back at versions released before Microsoft's current support policy—which only covers the three most recent macOS versions. Microsoft Office For Mac Os X 10.11 6 Free Download
Given the difficulty and security risks of obtaining Microsoft Office for your older Mac, you may want to consider some excellent, completely free alternatives. These are legitimate, safe, and offer excellent compatibility with Microsoft Office file formats.
: An older 32-bit version that is fully compatible with El Capitan. Note that official support for this version ended in October 2017. While you cannot "freely" download a full, licensed
Running legacy systems requires navigating official archival pathways, understanding activation limitations, and preparing for the technical realities of using discontinued software. Compatibility Breakdown for El Capitan
Finding productivity software for older operating systems can be challenging. If you are running OS X 10.11.6 (El Capitan) on an older Mac, you cannot simply download the latest version of Microsoft 365 from the Mac App Store. Modern versions of Microsoft Office require much newer macOS versions. Finding a working installer for El Capitan requires
Before clicking any "Download Now" button on a third-party site, check the URL. Official Microsoft domains end in microsoft.com . If it says microsoft-office-download.free-torrents.xyz , close the tab immediately.