使用Window Apllication添加要发布的Excel文件

I have been trying for an hour or so and cannot get this right. I have a Visual Studio project which reads an Excel file, which I have added to the VS solution. When I run the project in VS, the file can be opened successfully. However, when I publish the project, the file does not get included, and therefore cannot be opened by the application.I have been trying for an hour or so and cannot