Question

I need to open up an xlsx file so that the user can see it.

I used the following code but was not able to display the excel file:

public ActionResult GetExcelReport()
{
    string fileName = "Sheet1.xlsx";
    string path = Path.Combine(@"C:\Test", fileName);

    return File(path, "application/xlsx");
}

I was hoping that the retrun File(path ...

would actually open up the file for viewing.

Answer 1

Try to use Microsoft.Office.Interop.Excel, and:

Application excel = new Application();
Workbook wb = excel.Workbooks.Open(path);
excel.Visible=true;

By the way, you can also use using System.Diagnostics;, and

Process.Start(path);

You just open a file stream via using File, it doesn’t Launch a file.