>i just install Office2000 into my pc.
>a message appear on screen while running EXCEL.
>
>*****
>The document you are opening contains macros. Some macros may contain harmful viruses. If you are sure this document is from a trus ted source, click Yes. If you are not sure and want to prevent any macros from running, click No
>*****
>
>i had go into TOOL-MARCO, there haven't any marco program in it.
>did ny pc had virus ??
No, this is a standard warning that MS has appear within Excel if you have macro execution enabled and there are macros embedded in the XLS document you open. Not all macros are viruses - macros are mini-programs that can be incorporated into a document to do useful work. Macros are the means for using automation with VBA within the Office suite.
If you worry about virus infections, you should go out and purchase antivirus software like VirusScan or NAV - if you download things and exchange files between computers, it's pretty much suicidal not to use AV software...