Microsoft Excel 2002 SP3 and 2003 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted record information in an Excel file, aka "Excel Memory Corruption Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12616
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-021
http://www.vupen.com/english/advisories/2011/0940
http://www.us-cert.gov/cas/techalerts/TA11-102A.html
http://www.securitytracker.com/id?1025337
http://www.securityfocus.com/bid/47244
http://secunia.com/advisories/39122
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=901