In this video tutorial, viewers learn how to save in .doc file format in Microsoft Word 2007. When saving a file, click on File and select Save As. In Format, change it to Word 97-2004 Document(.doc) and check Append file extension. To set .doc as the default format, go to Word and select Preferences. Under Output and Sharing, click on Save and change the format to .doc in Save word file as. This video will benefit those viewers who want to learn how to save files in .doc format so that it can be compatible with most programs.