I've earned a good living writing tutorials for LibreOffice. It is not simple
for Microsoft Office users to switch to and it takes time for them to learn.
Fortunately re: file formats compatibility has gotten good enough that most
things work fine. The main things that are usually broken are advanced
features like pivot tables, macros, certain formulas, embedded documents,
etc.
I agree they're both proprietary products. But if someone won't even consider
any other products *at all* then at least getting them to acknowledge there
are other products worthy of their time is a first step towards leaving
Microsoft Office behind. But we can agree to disagree on this.
