Not work PHP5, Apache 2.2 and XP Client with Office 2007

i use your completely code for generate XLS file from PHP code, here I send you the codes with attachment...
I use PHP5, Windows XP for client, Apache 2.2, and Ms. office 2007 or Open Office 3.2
I do try also at XAMPP, but, i can not use the format, they got some error message such as:

Notice: Object of class Format could not be converted to int in C:\Program Files\Apache Software Foundation\Apache2.2\htdocs\project1_3\xlsClass\Worksheet.php on line 822

And the result was completely unreadable, such this one:
ÐÏ à¡± á> þÿ À à
À à  À à À “ €ÿ’â8ÿÿÿÿÿÿÿÿÿÿÿÿ€€€€€€€€€ÀÀÀ€€€™™ÿ™3fÿÿÌÌÿÿffÿ€€fÌÌÌÿ€ÿÿÿÿÿÿ€€€€€ÿÌÿÌÿÿÌÿÌÿÿ™™Ìÿÿ™ÌÌ™ÿÿÌ™3fÿ3ÌÌ™ÌÿÌÿ™ÿfff™–––3f3™f333™3™3f33™333… W Sheet 1 À
è À % Test Generate Bold Font Excel ' Test Generate Italic Font Excel * "Test Generate Underline Font Excel 1 )Test Generate Double Underline Font Excel 1 $Test Generate Bold Italic Font Excel) ð?( ð?' è?& è?„ ƒ >

But, when i use no format, its work fine...
Perhaps, its problem on format workbook or worksheet...

Does any kind of new module perhaps...??

Please help me...
Do not hesitance to contact me, i need its urgently....



Best Regards,

Didit Agus Irwantoko,
[email protected]