Closing an Excel Workbook

Question

I have a bit of code that opens an xls workbook;

Excel.Workbooks workBooks;
workBooks = excelApp.Workbooks;
workbook = workBooks.Open(sourceFilePath + source         


        

Answer 1

    EXCEL.Application excel = new EXCEL.Application();
    try
    {
        EXCEL.Workbook book = excel.Application.Workbooks.Open(path);
        EXCEL.Worksheet sheet = book.Worksheets[1];
        // yout operation

    }
    catch (Exception ex) { MessageBox.Show("readExcel:" + ex.Message); }
    finally
    {
        KillExcel(excel);
        System.Threading.Thread.Sleep(100);
    }


[DllImport("User32.dll")]
public static extern int GetWindowThreadProcessId(IntPtr hWnd, out int ProcessId);
private static void KillExcel(EXCEL.Application theApp)
{
    int id = 0;
    IntPtr intptr = new IntPtr(theApp.Hwnd);
    System.Diagnostics.Process p = null;
    try
    {
        GetWindowThreadProcessId(intptr, out id);
        p = System.Diagnostics.Process.GetProcessById(id);
        if (p != null)
        {
            p.Kill();
            p.Dispose();
        }
    }
    catch (Exception ex)
    {
        System.Windows.Forms.MessageBox.Show("KillExcel:" + ex.Message);
    }
}

Thank you!!!!