Isn't the contents of
For example, you may be able to retrieve the text (not sure) but getting your formatting to look exactly like it did in MS Word, will require MS Word.
If you want proof, find another word processing app that can display it 100% compatible with MS Word without calling any code from MS Word.
Now explain how in 25 years time when most people vaguely remember what MS Word 2010 looked like or did, you will somehow open your
Build a system that even a fool can use and only a fool will want to use it.