Even though we don't generally write about Microsoft Office 2007, we have received many e-mails from people asking us different things about it. One of the most common questions is: 'why Microsoft Office 2007 files cannot be opened by Microsoft Office 2003 or XP?'. That's because this version uses a new file format called
Office Open XML. This new format offers a series of advantages, including a smaller file size compared to the format used by the old versions of Microsoft Office. All Microsoft Office 2007 file extensions have an ''x" at the end: '.doc' is now '.docx', '.xls 'is now '.xlsx', etc. By default, older versions of Microsoft Office cannot open files created with version 2007.
However, there are ways to save files created in Microsoft Office 2007 using the old formats. In this article we will describe them for you.
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