This is usually a compatibility issue.
Downloading this file from unauthorized sources (torrents, file‑sharing sites, or unlicensed archives) may: sw-dvd5-office-professional-plus-2016-w64-english
Important: No legitimate Microsoft partner or reseller would distribute software under this naming scheme. If you encounter this file in a corporate environment, immediately flag it to your security team. w64 – 64‑bit Windows version
.iso. It is a disk image that acts exactly like a physical DVD.