Don, Any time I download any file of any kind, I scan that file with my anti-virus program before opening...or even moving it. I use bit defender, which allows me to right click the file and choose scan with bit defender. Once that is done, I am confident the file can be moved, viewed or whatever safely. A doc file is a Document file, usually associated with Microsoft Word...which can convert it to a pdf file if you wanted. Other anti-virus programs may operate differently, and I would suggest you try yours by targeting a known good file on your computer...and have your anti-virus program scan it...just to get familiar with how to do it. After that you could download your doc file, and scan it...with confidence.