[okanat]

And also majority of European businesses and governments and schools. Europe is well integrated into US. Quite a few STOXX 600 have US wings or acquired US companies.

Basically a substantial (non-software) enginerring or financial work is done in Microsoft's proprietary formats, occasionaly involving VBA.

Many businesses cannot even pay salaries without macro-ridden Excel documents.

With 365 Microsoft has even stronger moat: cloud integrated co-editing using desktop apps. No browser will exceed C++/C# Office apps running directly on the PC. Not even proprietary apps have equivalent experience.

On top of that add all Azure, SharePoint etc. All big companies without exception use those and put significant portion of their business knowledge on Microsoft platforms.

US can literally kill Europe by just forcing Microsoft to shutdown its operations. It is fucking scary.

[M95D]

There are more effective ways of doing that. For example invalidate all european Visa and Mastercards. That would really kill most of Europe.