Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016, Office Compatibility Pack SP3, and Excel Viewer allow user-assisted remote attackers to execute arbitrary commands via a crafted cell that is mishandled upon a click, aka "Microsoft Office Security Feature Bypass Vulnerability."
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-7262
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-148