It looks like you are asking about a specific software identifier: — which refers to Microsoft Office Professional Plus 2016 (64-bit, English) .
Legitimate Microsoft software is not distributed with these naming conventions. If you encounter a file or installer named exactly swdvd5officeprofessionalplus2016w64english.iso , it is almost certainly unauthorized/pirated software. Using such copies exposes you to malware, activation exploits, and legal liability.
Microsoft Office Professional Plus 2016 (64-bit) provided tangible benefits for users with heavy data and memory needs, while introducing compatibility trade-offs that required careful enterprise planning. Its role in bridging traditional desktop productivity with emerging cloud services set the stage for subsequent Office releases.