I am trying to create dynamic excel sheet, with the help of php using XML Spreadsheet. But when I try to open the dynamically created excel sheet I keep on getting error that says 'Unable to load worksheet, problem with worksheet settings'. When I try to look at the log file it had created it shows the below text,

XML ERROR in Worksheet Setting
REASON: Bad Value
FILE:   C:\Documents and Settings\UserName\Local Settings\Temporary Internet Files\Content.IE5\5XZ039FS\output[3].xls
GROUP:  Worksheet
TAG:    Table
ATTRIB: ExpandedRowCount
VALUE:  4

Herkes yukarıdaki hata ne demek söyleyebilir ve onu nasıl kaldırabilirim?