Disabling the virus scanner upon opening a document

Hello

I have added some visual basic code to my EXCEL sheet, then when I ran it, it looked like the code I applied put a very load on the CPU, and then it collapsed. So I opened the excel file again but it doesn't want to open and gives me this windows message:

The file can not be opened because your virus scanner has detected a problem with the file.

I know that my Norton Ani-virus scanner is expired and I checked that already, so which virus scanner it's talking about? How do I disable the virus scanner that automalically scans any to-be-opened excel document?

Any clues?