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Warning: File was created using a later version of Excel


I have created an Excel report using the Aspose.Cells and opened it through code. When I tried to save this report, I get the following Warning:

"The file was created using a later version of Excel. There is a remote possibility that certain workbook properties specific to the later version may be lost if you save this file in this version."

Can you please help me in resolving this Warning?

Ankush Chauhan

This message was posted using Aspose.Live 2 Forum

Hi Ankush,

Please share the complete code that are using to create and then open the excel report. We need to test this problem.

I checked your website and found that you have released Version 5.1, as in the link below it mentions that you guys have solved this issue ( IssueID 17820 : File was created using a later version ).

Can you tell us more about this IssueID 17820 ?

Assuming that this issue that I am facing is similar to IssueID 17820, I tried installing the latest version. But there seems to be backward compatibility issue. Types like PdfBookmarkEntry are supported anymore in this new version??

FYI, We are using version


The customer who reported an issue IssueID 17820 was facing this problem because his source excel file contained an empty Validation, that’s the reason which causes the error. Empty validation means, validation without adding an area attached to it. Please share the excel workbook that you are using. I would have shared the forum link, but user have made this thread private and you cannot access that link. When using v5.1.1, I am able to see PdfBookmarkEntry class.


I would like to add more, since the release of v5.1.0, we have re-organized the API structure, so certain types/classes are moved to certain namespaces. Please import Aspose.Cells.Rendering in your project before using PdfBookmarkEntry class, see the document for your further reference, also check the Aspose.Cells for .NET v5.1.0 API Reference:

Thank you.

please find attached file to check the issue we are facing. On hitting save, the popup of “file was created using later version…” shows up.


I have received your file.

We will check your issue and get back to you soon.

Thank you.


Please try our latest version v5.1.1: http://www.aspose.com/community/files/51/.net-components/aspose.cells-for-.net/entry250805.aspx as we have tested and could not find this issue. Some older versions might have this issue but now it is fixed in the latest versions.

Thank you.