When searching for "Proplus.ww Propsww2.cab Office 2016 Download" , you are likely seeing one of these specific error dialogs:
files using an MD5 checker tool to see if the file is truly corrupted. Microsoft Learn Official Download Methods
While less common today, many businesses still use DVDs to install volume-licensed software. If your Office 2016 DVD has a scratch precisely where the Propsww2.cab file is located, the optical drive will fail to read it, resulting in this error.
The downloaded ISO file or extraction process may have failed, resulting in a missing or damaged .cab file.