: Potentially indicates a Retail ISO (RISO) with a build version or revision number (160).
If you have a product key, go to setup.office.com and sign in. Microsoft will provide the official installer, which is a small bootstrapper, not a random ISO named office201624c2riso160 1732820162x64rp new . office201624c2riso160 1732820162x64rp new
A legitimate Office 2016 ISO (Volume License edition) has file names like: : Potentially indicates a Retail ISO (RISO) with
: Indicates a Click-to-Run (C2R) version of Office 2016. Unlike older MSI-based installers, C2R allows for faster installation and background updates. which is a small bootstrapper
chocolatey.org/packages/microsoft-office-deployment/16.0.17328.20162">Office Deployment Tool ? Update history for Office 2016 C2R and Office 2019