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From: "Nigel Brown" <nigel_br0wn@hotmail.com>
To: poi-user@jakarta.apache.org
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Subject: What do these warnings mean?
Date: Wed, 29 Sep 2004 14:06:35 +0200
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Message-ID: <BAY13-F37BBBVhyemYe0000c0c5@hotmail.com>

Hi,
I am currently running a few test to see if I can reuse some excel files 
which contain data, without having to design a proper database around them.
I wrote the following code, which attempts to read the number of sheets from 
an existing file.

code:
--------------------------------------------------------------------------------

import java.io.*;import org.apache.poi.hssf.usermodel.*;import 
org.apache.poi.poifs.filesystem.*; public class Test {    public static void 
main (String []args) throws IOException{        POIFSFileSystem fs = new 
POIFSFileSystem(New FileInputStream("Test.xls"));        HSSFWorkbook wb = 
new HSSFWorkbook(fs);        int i = wb.getNUmberOfSheets();        
System.out.println(i);    }}

--------------------------------------------------------------------------------


The code compiles, but when I run the program I recieve the following 
warnings
[WARNING] Unknown Ptg 69 (105) //repeated four times
[WARNING] Unknown Ptg 11 (17) at cell (29,4) //repeated for a few different 
cells
[WARNING] Unknown Ptg 69 (105) at Cell (121,4) // The Ptg 69 warning again 
this time on a number of different cells. Then eventually I receive a
java.lang.OutOfMemoryError and the program exiting.

Sorry for the long winded build up to my questions. What are these Warnings, 
can I find any documentation on them ? How do I prevent them and is there a 
limit to the size of Excel file I can read ?

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