Once again, I would like to remind you about the importance of protecting your files against computer viruses. You are advised to read this message carefully in its entirety. While it is true that there are relatively few Mac viruses, there is a real threat from Microsoft Office macro viruses. They can delete or scramble your files for instance, which is pretty bad. A macro is a series of commands to perform some application-specific task.
Macro viruses are malicious macros that are executed automatically at a specific time.
They can also get executed when user performs a specific action, such as Save or SaveAs from the menu or by a key shortcut. They can also be triggered by another macro. They may be embedded in a HTML formatted message. You can download them from a website or an ftp server. You can copy them from a network volume, i.e. a network server or another computer.