> What if the user opens up the sheet and changes a number
> after PHP creates it?  Wouldn't you want formulas to
> re-compute the sheet and keep it correct?  :)

Like I said, it depends on your case. When I create an Excel file, it's a
"snapshot" of everything. If you need an updated speadsheet, you go back to
the webpage and hit the button again... I don't expect people to be updating
the actual excel file.

---John Holmes...

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