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Does anyone know what might be the reason for getting the following exception when trying to open an existing MS Excel file while using poi HSSF?:

java.io.IOException java/lang/Throwable.<init>()V+4 (Throwable.java:73) java/lang/Exception.<init>()V+1 (Exception.java:24) java/io/IOException.<init>()V+1 (IOException.java:26) java/io/FileInputStream.readBytes([BII)I+?? (FileInputStream.java:??) java/io/FileInputStream.read([BII)I+1 (FileInputStream.java:179) org/apache/poi/util/IOUtils.readFully(Ljava/io/InputStream;[BII)I+13 (IOUtils.java:51) org/apache/poi/util/IOUtils.readFully(Ljava/io/InputStream;[B)I+5 (IOUtils.java:36) org/apache/poi/poifs/storage/HeaderBlockReader.<init>(Ljava/io/InputStream;)V+18 (HeaderBlockReader.java:71)

I'm actually using Scott Klement's HSSFR4 service program. The code that calls the open function is:

D FileName s 32A :
:
 book = hssf_open(%trim(FileName));

The exception is thrown at following line in hssf_open:

wwBook  = new_HSSFWorkbookFromPOIFS(wwPOIFS);

If anyone can help I'd greatly appreciate it.

Jose



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