In the case of Office 365 for business, IT admin will have to use the Office Deployment Tool to download and install Office 365 offline. One can run this from the command line as well.

Select Install Office > Download and install > select other options. Check the box Download an offline installer and select the language in which you want to install Office. Select Download .

So I tested a computer with Office 2003 Pro Products installed (Office, Visio, Project, One Note, etc).ALL of the help files appeared to be online, even repeated help questions.Are there offline ...