A malicious macro you are running unwittingly may damage, delete or mix up your Microsoft Office installation files on your hard drive. It is important to understand how dangerous macros can be before you activate macros in your Excel worksheets.Īlthough VBA codes are highly efficient in the automation of complex, repeat tasks, they are a major safety risk source. This tutorial deals with various methods of enabling Excel macros and explains potential risks. All macros are thus disabled by default in Microsoft Excel. Macros can be used for good and evil, just like almost every technology. There were times when Excel macro viruses, but Microsoft had to apply security precautions, and disable macros by default, - malicious macros that could cause serious harm. Macros are simple, small programs that can automate common tasks in Excel (or other Office programs). The scripts known as macros may be included in Microsoft Excel spreadsheets.
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