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Hello
I am using .NET 6 and I want to open the Excel file with Microsoft.Office.Interop.Excel.
Calling the constructor of my C# class I get this error:
System.IO.FileNotFoundException: 'Could not load file or assembly 'office, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c'. The system cannot find the file specified.'
I have installed Microsoft.Interop.Excel Nuget package.
I have installed in Visual Studio the office tools.
I am using the same code with .NET Framework 4.8. It is working fine.
Must a use another library?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(307.2, 92%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECQ%3C/text%3E%3C/svg%3E)
Hi, @Urs Wagner
I am in charge of Office General, and I recommend you to wait for a reply from an expert familiar with coding.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(246.4, 4%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESS%3C/text%3E%3C/svg%3E)
1) I had to remove the NuGet package Microsoft.Office.Interop.Excel package
2) I had added the wrong COM library (office instead of Excel)
Thank You very much.
Hi @Urs Wagner
I will suggest you to add those COM Manually.
However, this platform does not accept zip file as an attachment. I will create a repo on GITHub and send you the public link.
Cheers,
Sina
What You mean with manually add?
I have added it with Add Reference | COM Reference.