There, they can be examined before they are opened for editing in Excel 2010, Power Point 2010, or Word 2010. File format attacks exploit the integrity of a file, and they occur when someone intentionally modifies the structure of a file to add malicious code.
As a result, attackers could gain access to a computer that they did not previously have access to.
Office File Validation, a Microsoft Office 2010 security feature, is now available for both Office 2003 and Office 2007.
Office File Validation helps prevent file format attacks by scanning Office binary file formats before they are opened in Microsoft Excel 2010, Power Point 2010, or Word 2010.
There are other times, however, when opening a document can be downright painful—for instance, when it takes four minutes (or longer) to open a document that is only 800 KB in size.