Hello, 

with the version 3.0.1 of POI I can do this code : 
is = new FileInputStream(myExcelFile);
POIFSFileSystem poifsFileSystem = new POIFSFileSystem(is);
HSSFWorkbook wb = new HSSFWorkbook(poifsFileSystem, false);

However, when I want to use the version 3.0.2 of POI (for use the Class "HSSFFormulaEvaluator"), it's impossible : 
HSSFWorkbook wb = new HSSFWorkbook(poifsFileSystem, false);  // Exception with 3.0.2 (and 2.5.1), no probleme with 3.0.1

The Exception is : 
org.apache.poi.hssf.record.RecordFormatException: Unable to construct record instance
	at org.apache.poi.hssf.record.RecordFactory.createRecord(RecordFactory.java:199)
	at org.apache.poi.hssf.record.RecordFactory.createRecords(RecordFactory.java:117)
	at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:207)
	at business.extractfees.Go.doTreatmentByExcelFile(Go.java:298)
	at business.extractfees.Go.extractDataFromRepertoryGeneral(Go.java:205)
	at business.extractfees.Go.doTreatment(Go.java:87)
	at business.extractfees.Go.main(Go.java:67)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
	at org.apache.poi.hssf.record.RecordFactory.createRecord(RecordFactory.java:187)
	... 6 more
Caused by: java.lang.UnsupportedOperationException:  Unknown Ptg in Formula: 0x2 (2)
	at org.apache.poi.hssf.record.formula.Ptg.createPtg(Ptg.java:357)
	at org.apache.poi.hssf.record.DVRecord.fillFields(DVRecord.java:201)
	at org.apache.poi.hssf.record.Record.<init>(Record.java:55)
	at org.apache.poi.hssf.record.DVRecord.<init>(DVRecord.java:134)
	... 11 more


I use for POI 3.0.1 : 
3.0.1 : 
poi-3.0.1-FINAL-20070705.jar
poi-contrib-3.0.1-FINAL-20070705.jar 
poi-scratchpad-3.0.1-FINAL-20070705.jar

and for POI 3.0.2 : 
poi-3.0.2-FINAL-20080204.jar
poi-contrib-3.0.2-FINAL-20080204.jar 
poi-scratchpad-3.0.2-FINAL-20080204.jar


NB : the file that I open is not on my station, but on the network; and the file is open ONLY for reading (protected by password if you want to write). 


So, is it normal that I can open the file with the version 3.0.1, but not with 3.0.2 ? 
Is it possible to try to evaluate a Formula with POI 3.0.1 ? 

Sincerely,