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Editorial Team
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Asked: 2026-06-11T05:57:53+00:00

I have a desktop application which has to read an excel file (either .xls

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I have a desktop application which has to read an excel file (either .xls or .xlsx).

When the application is installed in a Windows 7 pc with Office 2003 i cant read the excel file using Microsoft.ACE.OLEDB.12.0. I have the message that Microsoft.ACE.OLEDB.12.0 is not registered.
Using Microsoft.JET.OLEDB.4.0. doesnt help either.

So how can we read the excel file? I know one option is to build my application forcing it to compile to (x86) so it runs as a 32-bit application.
Ok, supposing i dont want to do so, is there any other option?
Thanks for any answers. Any comments are welcome!

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1 Answer

  1. Editorial Team

    Sounds like a job for Npoi. Stand alone library that can work with xls and xlsx files. No need to use those Jet libraries.
    Ok, that will involve a bit of work, but you remove a dependency from something you can’t control on user’s machine.

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