Probably not. If you use file|open, then that newly opened workbook will be in
the same already running instance of excel.
But you can start another instance of excel
Windows start button|run
type
excel
and hit ok
Then use file|open to open the other workbook.
Note that this is just having two different programs running (word and
powerpoint, or excel and excel). One instance can't control the other.
> I suppose I must be overlooking something obvious here, but what constitutes
> another instance? Doesn't opening another Excel file launch another instance?
> If not, how do you run another instance?
>
> Andy

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Dave Peterson