EasyXLS

ErrorType.inc

<?php
$ERRORTYPE_NULL = 0;
$ERRORTYPE_DIV0 = 7;
$ERRORTYPE_VALUE = 15;
$ERRORTYPE_REF = 23;
$ERRORTYPE_NAME = 29;
$ERRORTYPE_NUM = 36;
$ERRORTYPE_NA = 42;
?>

EasyXLS Excel components:

.NET
Excel Library for PHP
full COM+ version to import, export or convert Excel files
Excel Writer for PHP
COM+ version to create and export Excel files
Download EasyXLS™ Excel Component for PHP

File formats:

Office 365
MS Excel 2021 - 2024
MS Excel 2007 - 2019
MS Excel 97 - 2003
XLSXXLSMXLSBXLS
XMLHTMLCSVTXT