Microsoft Excel 2002 SP3 and 2003 SP3 does not properly validate record information, which allows remote attackers to execute arbitrary code via a crafted .wk3 (aka Lotus 1-2-3 workbook) file, aka "Lotus 1-2-3 Workbook Parsing Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6737
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-080