Question

As shown in title, lets say that I have two projects in one solution. I have three, the last one is just for an example. One project is ExcelWorkbook called (EWB)

and another one is WindowsForm called (Core). I would like to show/open/start this EWB from Core. I’ve added references to the first one:

and I can see sheets of that specific workbook. It’s not so easy as it is like when you’re showing form from another project. Just for note, EWB.Sheet1 does not contain a constructor that takes 0 arguments, its constructor has two argument, …

Here are these arguments:

• Microsoft.Office.Tools.Excel.Factory factory
• IServiceProvider serviceProvider

For this project its says as following:

I would like to open that workbook on button click event but I don’t know how to:

• start it
• show it
• open it
• or …

Any idea how this could be done? Any help will be appreciated!

This how I open form from another project, and this is the way I would like to open that EWB.

using WindowsFormsApplication1;

private void CoreBtn_Click(object sender, EventArgs e)
        {
            Form1 newForm = new Form1();
            newForm.Show();
        }

Answer 1

Add a reference to Microsoft.Office.Interop.Excel and using Excel = Microsoft.Office.Interop.Excel;

Here is some simple code to get you started:

Excel.Application xlApp = new Excel.Application();  // create new Excel application
xlApp.Visible = true;                               // application becomes visible
xlApp.Workbooks.Open(@"C:\workbook.xlsx");          // open the workbook from file path

xlApp.Quit();                                       // close the application when you are done

And for more information the Excel Object Model look here.