When opening/saving .docx files in Microsoft Internet Explorer 8, .docx files turn into .zip files. According to various sources around the internet, this is an Internet Explorer issue that will be fixed in a future software update. Until then you can do one of two things to make it work: Change the file from filename.zip to filename.docx Or complete the following … [Read more...] about Why do Microsoft Word 2007 .docx files download as .zip?