word 2010. the user claims to have worked on the file for a long duration and been saving regularly. came back to office and tried opening the file, wehrein user claims the file is corrupt and cant open it anymore. looking at file properties, it is only 4kb whereas the actualy file user worked on was more than 3 mb. any thing to try to fix it. have tried open and repair, tried changing the extension, searched PC for .asd and .wbk and tmp files which could have helped. tried few of the recovery tools ( recuva etc which are freeware , but dont findanything worthwhile with the tools.
have also tried looking manually in locations where there was possibility of seeing the auto recover files. user has already tried recover unsaved document option. thee is no shadow copy enabled on the machine, hence no chance of reverting to previous versions of documents.
any advice i shighly appreciated.