I have a problem with virus docx change to exe.

Hi techyv,
I have a problem with virus docx change to exe. All my .docx files was changed to .exe files and the worms or viruses did the changes. I can see from my program files that it is slowly eating all my important data and convert some files in a random way that the user will not be able to open those files anymore. I need your help to get rid of those viruses and if possible recover my lost files.
Hoping for your help and kind consideration.
