hi i have got problem am trying to generate report using my application when i download the report it say Microsoft excell 97-2003 worksheet how can i change this to be in 2010 excell worksheet xlsx,am in window 7 i try to put file as filename.xlsx but after i download it say filename.xlsx.xls. i try this link no luck http://dottech.org/26491/how-to-forc...-how-to-guide/
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