What MS lock-in? Nobody's forcing the world to use MS Office. They just already do. And since sometimes people will give me MS Office files, I need programs that can edit them correctly. I don't see how it's MS Office's fault that LibreOffice incorrectly formats Office documents. Microsoft doesn't seem to be taking steps to lock others out from editing Office format files.
Whether they are actively trying to lock you in, I don't know. But neither are they making great efforts at interoperability.
I've had personal files becomes inaccessible before because they were in proprietary formats and the program no longer ran on my OS. That "lock-in" may or may not have been intentional by the software maker, but the effect on me was the same regardless. Now I use explicitly open formats and maintain my ability to change software.
Microsoft doesn't seem to be taking steps to lock
others out from editing Office format files.
Microsoft doesn't have to take such steps. It took them six full years (three versions of Office) to get Office to support the strict variant of the Office "Open" XML format that they created.
