I am accustomed to generating Excel spreadsheets in php programs using
$fn = "excel" . date('Y-m-d_h_i') . ".xls";
n: attachment; filename=" . $fn);
I now have a customer that wants excel formulas in cells, etc.
I'm guessing that when I understand the details of the formulas, I can just print those formulas in the appropriates cells; like sum(G4:G67), etc.
There is apparently a Ruby on Rails Gem that does all this.
Is there anything comparable in php?