I'd start by making sure that Excel is the culprit. Open up the Task Manager
and go to the Processes tab so you can see what processes are using how much
CPU time. Then work with an Excel file that seems to cause the problem and
see if it is Excel or something else bogging down the works. Could be
something other than Excel, such as an almost full hard drive that the system
is having to work hard to find room to save the file to.

If you hadn't said that it only does this with Excel, I might have even
suggested that the behavior might indicate virus operation, or a pending
hardware failure. These are still not things that can be ruled out entirely
at this point. It may be that Excel is using a portion of RAM that is not
often used by other programs, and you have a problem with a RAM chip that has
that area of memory on it.

If it seems that it's Excel and only Excel that's related to this issue, you
might try a repair installation of Office/Excel 2000 and see if that helps
any.

"Jasper Recto" wrote:

I have computer that has Windows 2000 with Excel 2000. When the user closes
excel, the CPU usage spikes between 70 and 100%. It stays that way for
about 15 seconds.

After you close Excel, you can't open up anything because the CPU is being
taxed.

This only started about 2 weeks ago and it only does it with Excel.

Any ideas?

Thanks,
Jasper