unable to open the existing xls io

[Benjamin Cage]

I would like to modify some sheets in existing file , but I found so difficulty to open that file . 

from this code 

    IWorkbook workbook = application.Workbooks.Open(dataPath, ExcelOpenType.Automatic);

it rise an error 

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error: 

Line 520:
Line 521:            //IWorkbook workbook = application.Workbooks.Create(1);
Line 522:            IWorkbook workbook = application.Workbooks.Open(dataPath, ExcelOpenType.Automatic);
Line 523:          

may be because the file is to big. any suggestion for my problem? i'm also attached the file.

best regards.

openFile_12abb1d0.zip

[Manoj Kumar G M]

Hi Benjamin,

We are unable to reproduce the issue at our end, please share the following details which would help us to proceed further.

1. Syncfusion Product version.

2. .NET FrameWork Version.

Please let us know if you need any further assistance

Regards,

Manojkumar.

[Benjamin Cage]

I'm using syncfusion product version 10.104.0.44 and .net fremework 4

[Manoj Kumar G M]

Hi Benjamin,

Thanks for your update.

The above reported issue has been fixed in our latest version 11.4.0.26. So we recommend you to upgrade your essential studio version to our latest version.

We provided the latest version download link for your reference.

http://www.syncfusion.com/support/forums/general/103480/Essential-Studio-2012-Volume-2-Final-Release-v102056-available-for-download

Please let us know if you need any clarification

Regards,
Manojkumar