if you also have latex files and corresponding pictures (assuming it was not the pdf or ps file of someone you downloaded), i think one simple way to get word file would be -- convert pdf to word first directly. if you find the picture/graph's quality compromised, just insert those original graphs in pdf or jpg or gif etc formats from your latex folder directly to the word or do it after conversion (some eps file may need to be converted to jpg or gif or pdf file i guess before inserting in the Word)