encoding problem word excell

Avg Bid (USD)
Project Budget (USD)
$10 - $30

Project Description:
I have many word and excell files that were 'hit' by a virus
i attach 2 photos of the error i get and an actual doc file
90% of the files are in greek. Also i have tried different version of office and didnt work also
what i want is for someone to show me a way to resolve this,so i can do the same for the rest of my files
in order to accept the bid,the buyer should provide a screenshot of my word document recovered ( just a few lines of course )

thank you

Skills required:
Excel, Word
Additional Files: test2.jpg test1.jpg test.doc
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