Loops through worksheets Excel

Hello,

I tried to loop through the worksheets in and Excel doc by increasing the work sheet handle. But unfortunately that does not seem to be possible and I got an error.

	ExcelRpt_SetWorksheetAttribute(rawDataWorkSheetHandle,ER_WS_ATTR_NAME,"Analysis Data");
	__caErrChk(ExcelRpt_SetWorksheetAttribute(rawDataWorkSheetHandle+1,ER_WS_ATTR_NAME,"something")); 

Is it somehow possible to do that? I don't like haven a handle for every worksheet in my workbook..

Thanks!