>I posted it here because it's not really a FoxPro problem, it's an Excel Automation problem. If I don't get anything new here in a few days, I'll consider posting under a different topic.

I believe it would not hurt posting it in VFP forum too. Look also for Event Handlers, in my opinion you may trap Close method from your code.

My google searches (though not extensive) indicated that you can not get multiple instances for each Excel workbook.