Exception while running POI api program

Hi Experts,

I am a beginner to Selenium, I am getting exception while executing the below program.

public class Reading_XLS_Files_POI {
//https://poi.apache.org/spreadsheet/quick-guide.html
public static void main(String[] args) {

Xls_Reader d = new Xls_Reader("C:\\Selenium\\SeleniumFiles\\Data.xls");
System.out.println(d.getRowCount("Record"));
System.out.println(d.getCellData("Record", "Name", 3));



//Xls_Reader d1 = new Xls_Reader("PATH");

}

}

and I have attached the following Jar's with the package
1. dom4j-1.1.jar,
2. poi-3.6-20091214.jar
3. poi-ooxml-3.6-20091214.jar
4. poi-ooxml-schemas-3.6-20091214.jar
5. xmlbeans-2.3.0.jar

and I am getting the below exception

org.apache.poi.openxml4j.exceptions.InvalidOperationException: Can't open the specified file: 'C:\Users\AZADMO~1\AppData\Local\Temp\poifiles\poi-ooxml--128556357.tmp'
at org.apache.poi.openxml4j.opc.ZipPackage.<init>(ZipPackage.java:102)
at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:199)
at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:178)
at org.apache.poi.util.PackageHelper.open(PackageHelper.java:53)
at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:176)
at Xls_Reader.<init>(Xls_Reader.java:33)
at Reading_XLS_Files_POI.main(Reading_XLS_Files_POI.java:6)
Exception in thread "main" java.lang.NullPointerException
at Xls_Reader.getRowCount(Xls_Reader.java:44)
at Reading_XLS_Files_POI.main(Reading_XLS_Files_POI.java:7)

Please advice/guide to resolve the problem.

Regards,
Azad Modi