Can't print files created on my PC

What kind of problem? What error message did you received?

The normal response would be that you probably have something wrong in your "normal.dot" document template, but having problems with two different applications at once is unusual. Try tracking down and renaming your normal.dot file for Word, copy in a normal.dot from another computer that is known to have Word working correctly, and try to create and print a document after that. If the document prints properly, that was the problem and change your Excel master template the same way. If it works briefly and then stops working after you open another document you created previously, I'd expect that you have a macro virus that attacks your master template.