source: https://www.securityfocus.com/bid/16181/info

Microsoft Excel is susceptible to a code-execution vulnerability. The issue presents itself when Excel tries to process malformed or corrupted XLS files.

Attackers may exploit this issue to execute arbitrary machine code in the context of the affected application.

https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/27055-1.xls

https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/27055-2.xls