Yes, I tried to recover the content but that doesn't work.
While opening it is giving error: We are sorry.We can't open "Doc name" because we found problem with its content.

I tried looking in document.xml of word document. It has some invalid content. In table cell property it has <w:noWrap w:val="0"/> In this noWrap node it is taking value "0" which is invalid , I suppose this might be the probable reason, if not, I want to know the reason why invalid xml is getting generated . What might be the cause of it.

If above provided reason is the cause then I want to know in which version of word <w:noWrap w:val="0"/> this was valid.