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Posted to dev@poi.apache.org by bu...@apache.org on 2017/09/18 15:42:48 UTC

[Bug 61533] New: Exception: Duplicate name "SummaryInformation" error is coming while parsing a file NPOI 2.3.0 in C#

https://bz.apache.org/bugzilla/show_bug.cgi?id=61533

            Bug ID: 61533
           Summary: Exception: Duplicate name "SummaryInformation" error
                    is coming while parsing a file NPOI 2.3.0 in C#
           Product: POI
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: HSSF
          Assignee: dev@poi.apache.org
          Reporter: nilabhra123@gmail.com
  Target Milestone: ---

Hi,

I am trying to open a file using FileStream Object in C# and I am getting an
error: " 
 " Duplicate name " SummaryInformation" ". We are getting this file from our
client to parse the file and process the information in our system.

But one scenario, I have noticed that If I open this file using Microsoft excel
and at the time of closing, the excel is asking for save the file. If do no
changes in the file and just click save button(or Ctrl + S), then I am not
getting any error and the file is getting processed properly. Please find my
code and exception details below:

Code:

using (FileStream sourceStream = File.Open(filePath, FileMode.Open,
FileAccess.Read))
{
    HSSFWorkbook Workbook = new HSSFWorkbook(sourceStream); // This statement
is throwing an exception    
}

Exception Message: " Duplicate name " SummaryInformation" "

Exception Source: NPOI DLL

Target Site Name: PopulatePropertyTree 

Please help me with a quick resolution for this. 

Thanks In advance.

Regards,
Nilabhra Bhattacharjee

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[Bug 61533] Exception: Duplicate name "SummaryInformation" error is coming while parsing a file NPOI 2.3.0 in C#

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=61533

Dominik Stadler <do...@gmx.at> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #3 from Dominik Stadler <do...@gmx.at> ---
This is likely more related to NPOI, the only thing that I see based on your
description is that there are properties in the internal structures of the
workbook which have the same name and thus fail some validation when the file
is loaded. 

Please discuss with the NPOI project directly if you need more information on
this, however you likely will need to provide more information or a sample file
which reproduces the problem.

As this is more related to another library, I am closing this here.

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[Bug 61533] Exception: Duplicate name "SummaryInformation" error is coming while parsing a file NPOI 2.3.0 in C#

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=61533

Javen O'Neal <on...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #1 from Javen O'Neal <on...@apache.org> ---
NPOI is a .NET fork of POI and is maintained by the folks at
https://github.com/tonyqus/npoi.

Have you tried addressing your issue over there?

If you think this bug affects both POI and NPOI libraries, could you attach the
file to this bug.

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[Bug 61533] Exception: Duplicate name "SummaryInformation" error is coming while parsing a file NPOI 2.3.0 in C#

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=61533

--- Comment #2 from Nilabhra Bhattacharjee <ni...@gmail.com> ---
Hi,

I have tried only with NPOI dll. I can not attach the file as it has sensetive
information of other persons.

I can understand that without having the file, reproduction of the issue is not
possible at your end. But it will be really helpful if you can tell me for
which scenario this exception:
 " Duplicate name " SummaryInformation" " occurs generally for POI/NPOI
library. I hope the file I am receiving is not generated by MS excel itself. It
is written by another software. So if you can suggest those reason of this
exception, I can check that at the source end of the file.

Please let me know about this.

Best Regards,
Nilabhra Bhattacharjee

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