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Problem to convert Excel to PDF

I have problem to convert attached file to PDF.
I am getting ‘Object reference not set to an instance of an object.’ error.
string dataDir = Server.MapPath(“Invoices/”);
Copy of Test_Pg5_1 (002).zip (23.1 KB)
string filePath = dataDir + “Copy of Test_Pg5_1 (002).xlsx”;
Workbook workbook = new Workbook(filePath);
Aspose.Cells.PdfSaveOptions opts = new Aspose.Cells.PdfSaveOptions();
opts.OnePagePerSheet = true;
workbook.Save(dataDir + “output_To_PDF.pdf”, opts);

Please help.


Thanks for the template file and sample code.

After an initial test, I observed the issue as you mentioned by using your sample code with your template file. I found an exception: “Object reference not set to an instance of an object” when rendering an Excel file to PDF. I have logged a ticket with an id “CELLSNET-46075” for your issue. We will look into it soon.

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


Thanks for using Aspose APIs.

This is to inform you that we have fixed your issue CELLSNET-46075 now. We will soon provide the fix after performing QA and including other enhancements and fixes.


Thanks for using Aspose APIs.

Please download and try the following fix and let us know your feedback.

The issues you have found earlier (filed as CELLSNET-46075) have been fixed in this update. Please also check the document/article for your reference: https://docs.aspose.com/display/cellsnet/Installation