Error when publish my project

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I Have a Problem when i was publish my project ,

It features is upload excel file ,
but , it show error like this

"

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Runtime.InteropServices.COMException:

What I have tried:

how i can solve this?

Do anyone help me solve this?

Posted 26-May-20 17:39pm

Member 14760154

Updated 26-May-20 21:24pm

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RickZeeland 27-May-20 1:39am

That could be related to an Excel library that uses COM, please give more details about what you are using, how it is referenced and the relevant code for the upload.

Member 14760154 27-May-20 2:29am

I think i have found the problem, the servers not installed office yet,

but i found i new problem , I think i can't convert xls into xlsx using interop excel.

Does any other way to convert xls into xlsx?

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RickZeeland · Answer 1 · 2020-05-26T21:26:00

Solution 1

Maybe this will be of help: Write data to Excel file (.xls and .xlsx) in ASP.Net[^]

And here is another example for ASP.NET Core that uses the ClosedXML library:
Export data to Excel with ASP.NET Core | elmah.io[^]

Posted 26-May-20 21:26pm

RickZeeland

Updated 26-May-20 21:34pm

v2