ZIP: DOCX documents are actually ZIP files, and may be viewable in archiving tools like 7-Zip If you can at least unzip the file, though, then you'll unpack XML files that describe the document ...

However, Microsoft Office Word 2010 features built-in support. Chron Logo Hearst Newspapers Logo. ... Click the drop-down button next to "File Name" and select "Open Document Text (*.odt)." ...