This Excel tutorial explains how to solve the problem of Excel Security Warning - Macros have been disabled. Excel Security Warning - Macros have been disabled This Excel Security Warning is one of the most annoying warnings in Excel. If you click on the Options button, you will see the below message. In fact, this message does say something about the reason for this alert, it explained that this error is caused by encrypted Macro. What it means encrypted is that the Workbook contai...