The “Microsoft Excel can’t start the application required…” error message is difficult to troubleshoot because the error message doesn’t contain much information about the root cause of the problem. This error occurs with Excel objects embedded in other Microsoft Office Applications or objects inserted into worksheets. Microsoft Support lists two known root causes of this error and offers a fix for one known cause with a caveat on the application of the fix. Microsoft also offers the option to pay for personalized support if the fix doesn’t solve the problem.
Microsoft Word 2013 has a known problem with linked and embedded objects that cause the error message “Microsoft Excel can’t start the application required to open this object. An error occurred and this feature is no longer functioning properly.