I need help with viewing a certain excel file

Those who saw my previous topic (the flashget one) are aware that I had to reinstall, I could not save anything from my old install and to my great displeasure one set of files seems to have been permanently damaged, or excel 2010 is being an asshole, I had a timesheet for the Videogame creator part of the forum, that was also lost too, so when I managed to recover it via data recovery wizard to my great displeasure I cannot open the files, well I cannot see their contents, this is what happens:Anyway to fix it? the format is certain xls but exel does not wants to accept it as such (unless my language setting has something to do with that)

file appears to have been overwritten, chances are the contents are gone.

So reconstruct from scratch. Oh well it shouldnt be too hard.