A macro virus is a computer virus that is written in the macro language of a program such as Word or Excel or Access.
Some macro viruses are just annoying, but others are very destructive.
These viruses can spread very rapidly. Fortunately, once you know about macro viruses, it is easy to protect yourself against them read on for details. It is not always easy to determine whether you have a macro virus. Macros and look through the various macros for ones that you do not recognize. It is possible that one, or more, of them are part of a macro virus that has infected your system.