Guide to Office 2007 File Formats
Office 2007 brought new file formats to the world of computer - XML based xlsx, docx, pptx, mdbx, and others. Learn how to navigate around these file formats in a mixed environment (Office 2000, 2003, 2007) and how to change your defaults to save in the previous version file formats.
Currently, there are no guides written for this topic. Help out the ThatGuide.com community (or just prove to us how smart you are!) and write a guide for this topic.