Microsoft’s Patch Tuesday this week delivers several patches to fix critical vulnerabilities in Office especially already well known Excel flaw. That vulnerability could allow remote code execution if a user opens a specially crafted Excel file and can allow a remote attacker to take control of a system, install, view and change data and create new accounts. According to Microsoft the update is critical for Microsoft Office Excel 2000 Service Pack 3 and rated Important for Excel 2002 Service Pack 3, Excel 2003 Service Pack 2, Excel Viewer 2003, Excel 2007, Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats, Office 2004 for Mac, and Office 2008 for Mac.