POI-Apache ERR

What is the solution people ?
The file exist in c drive with 2 sheets in excel file called
"As-Built and Design"
===================ERR==================
-1
The error occurred in D:\CFusionMX\wwwroot\1.cfm: line 16
14 : fis.close();
15 : </cfscript>
16 : <cfx_ExcelQuery action="read" file="c:\template.xls"
sheet="#sheetNumber#" variable="myQuery" />
17 : <cfdump var="#myQuery#">
=============Code=============
<cfscript>
fis = createObject("java",
"java.io.FileInputStream").init("c:\template.xls");
wb = createObject("java",
"org.apache.poi.hssf.usermodel.HSSFWorkbook").init(fis);
sheetNumber = wb.getSheetIndex("Sheet1");
fis.close();
</cfscript>
<cfx_ExcelQuery action="read" file="c:\template.xls"
sheet="#sheetNumber#" variable="myQuery" />
<cfdump var="#myQuery#">

What happens when you dump the value of sheetNumber before
you call your CFX tag? Also, if the excel file is called "As-Built
and Design", why are you trying to open template.xls? If
sheetNumber is set to a java NULL value, that could explain some
funky behavior by CF.

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