Scrivener file type issues?

A couple of points:
I was hoping that Scrivener would help me ‘compile’ my father-in-law’s diaries.
I have scanned these and edited them as Word 97-2000 DOC files in Open Office Writer but Scrivener won’t open them. I saved one as RTF and it opened Ok but not directly usable.
There are 194 files; do publishers insist on RTF, or would a later version of Word suffice?
A Windows issue: file names imported into the Binder lose their extensions - a potent source of errors…

How did you try to import the doc files? What was it that didn’t work?