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Exception thrown when opening legitimate xlsx file

I get an exception deep in Aspose when opening the attached password-protected xlsx file. Excel appears to open it without a problem. The problem showed up when a potential customer submitted the file. I’ve done light editing of the file to remove sensitive information and changed the password - the symptoms when trying to open are still the same.

A simple console app that reproduces the problem is at the end of this message - password is in plaintext in the code. Please keep me posted as to the problem and any potential workarounds; we will lose this customer if we can’t import the data.


using System;
using System.IO;
using Aspose.Cells;

namespace AsposeTest
class Program
static void Main(string[] args)
const string fileName = @"…\TestData\Test.xlsx";
const string password = “aspose”;
LoadOptions options = new LoadOptions(LoadFormat.Auto);
options.Password = password;
Workbook workbook = new Workbook(fileName, options);
catch (Exception e)
Console.WriteLine(“ERROR OCCURRED:\n” + e);

Hi Steve,

After an initial test, I am able to reproduce the issue as you have mentioned. I have logged your issue with an id: CELLSNET-27998. We will look into your issue soon.

Thank you.


We have fixed this issue. Please download: Aspose.Cells for .NET v5.3.3.3.

Thanks for the quick response! I’ll check it out today.


The issues you have found earlier (filed as 27998) have been fixed in this update.

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