Hi ,
I foun your code was writed in export.php

but ,While I Add th code as folow:
+ $max_rows=eguide_form_options('excel_max_rows', 0); // max line output
+} else { // multiple sections
+ $max_sect=eguide_form_options('excel_multi_sections', 5);
+ $max_rows=eguide_form_options('excel_multi_rows', 8);

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the export excel cant be open,
and if i change the old code
$max_rows=40;
==>$max_rows=50;

the exported excle can't be opened ,too.