Unspecified vulnerability in Spotlight in Apple Mac OS X 10.4.11 allows user-assisted attackers to cause a denial of service (application termination) or execute arbitrary code via a crafted .XLS file that triggers memory corruption in the Microsoft Office Spotlight Importer.
http://docs.info.apple.com/article.html?artnum=307179
http://lists.apple.com/archives/security-announce/2007/Dec/msg00002.html
http://secunia.com/advisories/28136
http://securitytracker.com/id?1019106
https://exchange.xforce.ibmcloud.com/vulnerabilities/39113