After installing Word Viewer you can open and view DOC files without having to use Microsoft Office Word. The small tool supports DOC, RFT, TXT, HTML, XML, WPD and WPS documents. One limitation of the viewer is that it can not run Macros. On the positive side it means your Windows computer is not at risk to be infected by a Macro virus when opening documents with Word Viewer.
To view documents in the newer DOCX and DOCM formats, Microsoft Office Compatibility Pack is needed additionally. You can download the tool from filehippo.com, too.