While the file formats (.docx, .xlsx) remain the industry standard, the software itself is entering its twilight. Microsoft Office 2016 reached the end of its "Mainstream Support" in October 2020. It is currently in the "Extended Support" phase, which ends in October 2025.
An "index of" search string is a common technique used to find open directories on the internet. When users search for "index of microsoft office 2016," they are typically looking for direct download links to the installation files (such as ISO or IMG files) of the Microsoft Office 2016 suite hosted on unsecured servers. index of microsoft office 2016