I am trying to open ppt

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I am trying to open ppt from "c:\myppts\first.ppt" with the below code. But i am getting the exception.

C#

objApp = new Microsoft.Office.Interop.PowerPoint.Application { Visible = MsoTriState.msoTrue };
objPresSet = objApp.Presentations;
objPres = objPresSet.Open("c:\myppts\first.ppt");

But i am getting the below exception:
COMException: PowerPoint could not open the file.

Posted 21-Dec-12 20:10pm

Pradeepkumar patil sonu

Updated 22-Dec-12 0:15am

Sandeep Mewara

v2

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Sajeesh Payolam · Answer 1 · 2012-12-21T20:20:00

Try with following code

C#

    private void btnPPT_Click(object sender, EventArgs e)
    {
      Microsoft.Office.Interop.PowerPoint.Application pptApp = new Microsoft.Office.Interop.PowerPoint.Application();
      Microsoft.Office.Core.MsoTriState ofalse = Microsoft.Office.Core.MsoTriState.msoFalse;
Microsoft.Office.Core.MsoTriState otrue = Microsoft.Office.Core.MsoTriState.msoTrue;
      pptApp.Visible = otrue;
      pptApp.Activate();
      Microsoft.Office.Interop.PowerPoint.Presentations ps = pptApp.Presentations;
      Microsoft.Office.Interop.PowerPoint.Presentation p = ps.Open(@"D:\AQHA\Wegbeschreibung\Reithallenplan.pptx", ofalse, ofalse, otrue);
      System.Diagnostics.Debug.Print(p.Windows.Count.ToString());
      MessageBox.Show(pptApp.ActiveWindow.Caption);
    }