Microsoft Office (by the way 2016 is a pretty solid software suite) is not thriving because of institutional knowledge. Office is great because users in most business settings can quickly pick up any of its applications (learn how to use it) and apply the same learnings to the rest of the suite, personal knowledge with a small learning curve. Also, tools like Excel are malleable and useable for most users in a company. If I create a unique data set in R, but would like to share it to everyone and have them play - its not going to spread very far. If I do the same in Excel, everyone can take a look and manipulate the data. I like to think of Office is a practical solution for most business with a wide range of users who are &quot;generalists.&quot;