--- SXSSFWorkbook.old.java	2012-06-28 15:33:04.941002255 +0200
+++ SXSSFWorkbook.java	2012-06-28 15:18:22.000000000 +0200
@@ -764,6 +764,12 @@
         //Substitute the template entries with the generated sheet data files
         injectData(tmplFile, stream);
         tmplFile.delete();
+	
+        //Ing. Massimo Cavalleri - Delete tmpFiles of Sheets
+        for (SXSSFSheet sheet : _xFromSxHash.values())
+    	{
+    		sheet.getSheetDataWriter().finalize();
+    	}
     }
 
     /**
--- SheetDataWriter.old.java	2012-06-28 15:32:51.965002529 +0200
+++ SheetDataWriter.java	2012-06-28 15:18:02.000000000 +0200
@@ -103,7 +103,7 @@
         return _lowestIndexOfFlushedRows;
     }
 
-    protected void finalize() throws Throwable {
+    protected void finalize() {
         _fd.delete();
     }