This little helper suppresses the "What’s New" dialog for Office 2016 apps, and it also prevents the transfer of the telemetry data to Microsoft.

office2016_postinstall.sh

#!/usr/bin/env bash

###
#
# office2016_postinstall.sh
#
# This little helper suppresses the "What’s New" dialog for Office 2016 apps,
# and it also prevents the transfer of the telemetry data to Microsoft. 
# Outlook 2016 and OneNote need an addition setting;
# The script takes care about that!
#
# What is missing? 
# 1. OneNote - I still test that
# 2. Skype for Business - No idea if the it supports any of the settings yet!
#
# Someone told me, that I could use IF/THEN loops to detect if the app is
# installed or not. I decided to create the PLIST for every app, just in case!
# Even if an App is not installed, it should work as soon as the App is
# installed.
# On the other hand: I have a customer who installed office in a sub directory
# (/Applications/Office), that makes it harder to find the installed Office
# Applications.
#
# Check if the Files exist:
# josh@hive:~ $ ls -1 /Library/Preferences/com.microsoft.*
# /Library/Preferences/com.microsoft.Excel.plist
# /Library/Preferences/com.microsoft.Outlook.plist
# /Library/Preferences/com.microsoft.Powerpoint.plist
# /Library/Preferences/com.microsoft.Word.plist
# /Library/Preferences/com.microsoft.office.licensingV2.plist
# /Library/Preferences/com.microsoft.onenote.mac.plist
#
# Please note: 
# As with every script that you might find in the Internet: Please check the
# script before execute it! If you have no idea what this script is doing,
# my advice is: Don't execute it! However, again, that applies to all scripts
# that you found and downloaded from the Internet.
#
# You need super user permission to set the defaults system wide!
#
# Example:
# sudo ./office2016_postinstall.sh)
#
# Warranty:
# There is no warranty in any kind! I tested the script carefully, but there
# is still a risk that something might go wrong.
#
# So, please don't blame me, you have been warned. 
#
# Author:
# Joerg Hochwald <http://jhochwald.com>
#
# License:
# This script is Public Domain (PD), do whatever you like with it! :-)
#
###

# Load some defaults
. /etc/bashrc

PATH=/usr/local/bin:/usr/local/sbin/:/var/root/bin/:$PATH
export PATH

# Create an array with all the Office 2016 apps
OfficeApps=( Excel Outlook Powerpoint Word onenote.mac )

for OfficeApp in "${OfficeApps[@]}"
do
	# Suppresses the "What’s New" dialog for Office 2016 apps
	if [[ $OfficeApp == "Outlook" ]] || [[ $OfficeApp == "onenote.mac" ]]; then
		/usr/bin/defaults write /Library/Preferences/com.microsoft."$OfficeApp" kSubUIAppCompletedFirstRunSetup1507 -bool true

		# Outlook and OneNote require one additional first run setting to be disabled
		/usr/bin/defaults write /Library/Preferences/com.microsoft."$OfficeApp" FirstRunExperienceCompletedO15 -bool true
	else
		/usr/bin/defaults write /Library/Preferences/com.microsoft."$OfficeApp" kSubUIAppCompletedFirstRunSetup1507 -bool true
	fi

	# Prevent the sending of any telemetry towards Microsoft
	/usr/bin/defaults write /Library/Preferences/com.microsoft."$OfficeApp" SendAllTelemetryEnabled -bool false
done