The official version is safe but outdated. The "free" versions are almost always malware traps. Your time is better spent with the modern, free alternatives.
Si buscas "descargar Microsoft Office 2016" hoy, te encontrarás con una sorpresa:
You click "Download Office 2016" and get a 2MB file called Downloader.exe . When you run it, it installs browser toolbars, a "PC Optimizer," and possibly a cryptominer before even touching Office.
These are not "patches." They are executables that mimic a corporate licensing server. They often trigger every antivirus on the planet—not always because they are viruses, but because they manipulate system files. However, many are trojans.