Sw-dvd5-office-professional-plus-2016-w64-english

Microsoft no longer sells Office 2016, but if you already have a valid product key:

The keyword refers to a specific ISO disk image file used for installing Microsoft Office 2016 Professional Plus. This specific naming convention is typically associated with Microsoft Volume Licensing Service Center (VLSC) downloads, designed for deployment within organizations and businesses. Breaking Down the Filename sw-dvd5-office-professional-plus-2016-w64-english

ISO image for Office Professional Plus 2016 (64-bit, English) Microsoft no longer sells Office 2016, but if

Unlike retail versions, this MLF edition typically requires a Multiple Activation Key (MAK) or a Key Management Service (KMS) provided through an organization's volume licensing agreement. This file is designed for offline deployment and

This file is designed for offline deployment and clean installations on Windows 64-bit systems.

A local server on your network handles activation automatically. Multiple Activation Key (MAK):