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Workbook with dialog sheets loading failed

Does Aspose Cells Supports Microsoft Excel dialog sheets?
And Can we please check why the attached file is failing to load with Aspose Cells.

Template-FileLoadingFailure.zip (3.2 KB)


Thanks for the template file.

Please notice, I am able to reproduce the issue as you mentioned by loading your template file by Aspose.Cells APIs. I found the Workbook (Microsoft Excel 5.0/95 Workbook) with MS Excel 5.0 dialog sheet(s) is failed loading by Aspose.Cells. I got an exception “System.ArgumentException - Offset and length were out of bounds for the array or count is greater than the number of elements from index to the end of the source collection” when loading the file into Aspose.Cells object model.
Sample code:

Workbook workbook = new Workbook("e:\\test2\\Template-FileLoadingFailure.xls");

I have logged a ticket with an id “CELLSNET-51545” for your issue. We will look into it soon.

Once we have an update on it, we will let you know.


This is to inform you that your issue has been resolved now. The fix will be included in the next official release (Aspose.Cells v22.8) which is scheduled to be published in the second week of August 2022. You will also be notified when the next version is released.

The issues you have found earlier (filed as CELLSNET-51545) have been fixed in this update. This message was posted using Bugs notification tool by johnson.shi