Earlier quoted context omitted.
So the entire EU is going to be forced to use Open Office or some other equivalent? Non tech people will hate this and it will cripple many businesses that rely on Microsoft Excel. You'd be surprised how much of the world economy is based on emailing Excel sheets back and forth
You can use MS Office without putting everything on the cloud. Excel doesn't need to go, and you can still use Excel online for calculations that don't include personal information, which should suffice for most businesses. Just don't upload that CSV containing all of your customers to Microsoft, that shouldn't be too hard.
Have you ever worked in a large organization?