Thread was being aborted- Big file

I have a web application which is connected to a database.

This ASPX page uses aspose.cells to convert a stored (XLXS) attachment to a PDF stream and shows it in an Iframe of the browser.
Off course this works normally perfect.

But now one of my customers has an error.
The xlsx attachment in the database is 42MB!! big with a lot of tabs.
The error, after several minutes loading is :
Thread was being aborted., Application = CSNobDpvDocBinBlob.aspx, Source =
Aspose.Cells, Function = Void Š›(System.IO.Stream), Stack = Š.”.Š›(Stream
)

So my questions are:
-Is there a limit your convert functions can handle?
-Is there a limit for an converted PDF to show in IE9?
-What does give the error? Memory IE9 of your DLL?
-Maybe some workaround for this?

Off course, i can send you the file if you want to test it for your own.
Hope to hear from you.

Greetings,
Michel

Hi,

Well, when you convert a big Excel file to PDF, the process would demand sufficient resources (CPU, RAM etc.) for Excel to PDF conversion. Also, the process may take some time. Moreover, your resultant PDF file/stream would be also huge sized. We recommend you to kindly try our latest version/fix : Aspose.Cells for .NET v7.5.2

If you still find the issue regarding Aspose.Cells, please post your template file here and paste your sample code to reproduce the issue on our end, so that we could look into it and investigate your issue soon.

Thank you.