DisplayingDifferentViewsofaDocument CompatibilitywithEarlierVersions Word 2007 uses a different file format than previous versions of the program. You can open a document created with previous versions, but the new features of Word 2007 will not be available. The name of the document appears in the title bar with [Compatibility Mode] to its right. You can work in Compatibility Mode, or you can convert the document to the Word 2007 file format by clicking the Microsoft Office Button, and clicking Convert. You can then click the Save button on the Quick Access Toolbar to overwrite the existing document, or click Save As on the Office menu to save the document in the new format as a different file. You cannot open a Word 2007 document in a previous version of Word unless you install the Compatibility Pack for the 2007 Office system, which is available for free download from Microsoft Office Online. After installing the Compatibility Pack, you can open and work with Word 2007 documents, but you cannot open Word 2007 templates.