Kill Process Excel C#

Question

I have to 2 process excel. For example:

1) example1.xlsx 2) example2.xlsx

How to kill first "example1.xlsx"?

I use this code:

   foreach (Process clsProcess in Process.GetProcesses())
     if (clsProcess.ProcessName.Equals("EXCEL"))  //Process Excel?
          clsProcess.Kill();

That kill a both. I wanna kill just one... Thank you.

just did a quick search on Google, try Process.MainWindowTitle() to get the title of the Excel process, and decide which one is that you want to kill. — JXITC
– JXITC, Commented Feb 16, 2012 at 17:45
The proper way to do this is to track and release the Application COM object and all it's dependencies. — Motomotes
– Motomotes, Commented Dec 23, 2013 at 14:21

Ta01 · Accepted Answer · 2012-02-16 18:03:15Z

14

The ProcessMainWindow Title will do it for you, it appends "Microsoft Excel - " to the name of the file:

So essentially (quick code):

private void KillSpecificExcelFileProcess(string excelFileName)
    {
        var processes = from p in Process.GetProcessesByName("EXCEL")
                        select p;

        foreach (var process in processes)
        {
            if (process.MainWindowTitle == "Microsoft Excel - " + excelFileName)
                process.Kill();
        }
    }

Use:

KillSpecificExcelFileProcess("example1.xlsx");

Edit: Tested and verified to work.

edited Feb 16, 2012 at 18:03

answered Feb 16, 2012 at 17:51

Ta01

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3 Comments

Ta01 Over a year ago

What do you mean it doesn't work, did you try just opening example1.xlsx and see if it closes it? Are you automating Excel with other code that is causing multiple EXCEL.exe 's to spawn

Eriksson Over a year ago

If you have two excel document opened, and if you run this code, that close the both....

Eriksson Over a year ago

I have this: Excel.Application xlApp = new Excel.Application(); Excel.Workbook xlBook = xlApp.Workbooks.Open("c:\\teste.xlsx", 0, false, format, null, null, false, Excel.XlPlatform.xlWindows, null, true, false, 0, true, false, false); This works... But why MainWindowTitle is equals to a empty string but not equals "Microsoft Excel - teste.xlsx"???

Stephen Rauch · Accepted Answer · 2018-06-28 01:07:28Z

5

kd7's post is an awesome answer and works well, just two things to add,

MainWindowTitle format is - "Filename.xlsx - Excel"

If your excel document is not visible then your MainWindowTitle will be "" using the "" for MainWindowTitle will kill all zombie excel process'.

edited Jun 28, 2018 at 1:07

Stephen Rauch♦

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answered Jun 28, 2018 at 0:45

Kezzla

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Comments

raveturned · Accepted Answer · 2012-02-16 17:43:40Z

2

If your current code is working, this amendment should kill the first process it finds with the name "EXCEL".

foreach (Process clsProcess in Process.GetProcesses())
{
  if (clsProcess.ProcessName.Equals("EXCEL"))
  {
    clsProcess.Kill();
    break;
  }
}

If you want to kill a specific process, you're going to have to give a bit more information.

answered Feb 16, 2012 at 17:43

raveturned

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Comments

monkSinha · Accepted Answer · 2017-07-05 10:33:12Z

2

Copy and paste this. Its done!

 System.Diagnostics.Process[] process = System.Diagnostics.Process.GetProcessesByName("Excel");
     foreach (System.Diagnostics.Process p in process)
     {
         if (!string.IsNullOrEmpty(p.ProcessName))
         {
             try
             {
                 p.Kill();
             }
             catch { }
         }
     }

answered Jul 5, 2017 at 10:33

monkSinha

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Comments

Ani · Accepted Answer · 2012-02-16 17:43:21Z

1

Excel will always be a single process, AFAIK. The same process/windows opens multiple documents inside it. What you want to do is use Excel automation to CLOSE the document you want to. Perhaps this will get you started. http://support.microsoft.com/kb/302084

Hope this helps.

answered Feb 16, 2012 at 17:43

Ani

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Comments

user3255770 · Accepted Answer · 2014-01-31 03:00:51Z

1

Use below logic to prevent Zombie Excel processes in Task Manager

 List<int> GetAllExcelProcessID()
    {
       List<int> ProcessID = new List<int>(); 
       if (currentExcelProcessID == -1)
        {
           List<System.Diagnostics.Process> currentExcelProcessList = System.Diagnostics.Process.GetProcessesByName("EXCEL").ToList();
           foreach(var item in currentExcelProcessList)
            {
                ProcessID.Add(item.Id);
            }
        }
       return ProcessID;
    }
int GetApplicationExcelProcessID(List<int> ProcessID1, List<int> ProcessID2)
    {
        foreach(var processid in ProcessID2)
        {
            if (!ProcessID1.Contains(processid)) { currentExcelProcessID = processid; }
        }
        return currentExcelProcessID;
    }
 void KillExcel()
    {
        System.Diagnostics.Process process = System.Diagnostics.Process.GetProcessById(currentExcelProcessID);
        process.Kill();
    }
 List<int> ProcessID1 = GetAllExcelProcessID();
                excel = new Excel.Application();
                List<int> ProcessID2 = GetAllExcelProcessID();
                currentExcelProcessID = GetApplicationExcelProcessID(ProcessID1, ProcessID2);

answered Jan 31, 2014 at 3:00

user3255770

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1 Comment

user3255770 Over a year ago

This script will keept other excels which are opened before your application starts.

Community · Accepted Answer · 2017-05-23 12:10:43Z

0

You need to check file handles, that are opened by process and then kill it.
How to check which file handles process is holding: How do I get the list of open file handles by process in C#?

foreach (Process clsProcess in Process.GetProcesses())
{
    if (clsProcess.ProcessName.Equals("EXCEL") && HasFileHandle(fileName, clsProcess))
    {
       clsProcess.Kill();
       break;
    }
 }

edited May 23, 2017 at 12:10

CommunityBot

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answered Feb 16, 2012 at 17:44

Giedrius

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2 Comments

Eriksson Over a year ago

What library is defined HasFileHandle? Thank u

Giedrius Over a year ago

It's a pseudomethod, you can find implementation in my mentioned stackoverflow link.

Fiacc · Accepted Answer · 2012-02-16 17:45:23Z

0

Try getting the main window title

   foreach (Process clsProcess in Process.GetProcesses())
   {
      if (clsProcess.ProcessName.Equals("EXCEL")&& clsProcess.MainWindowTitle =="example")  
      {
          clsProcess.CloseMainWindow();
          break;
      }
   }

answered Feb 16, 2012 at 17:45

Fiacc

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Comments

JXITC · Accepted Answer · 2012-02-16 17:46:18Z

0

just did a quick search on Google, try Process.MainWindowTitle() to get the title of the Excel process, and decide which one is that you want to kill.

I am not sure about this method, but hope this will help:

http://msdn.microsoft.com/en-us/library/system.diagnostics.process.mainwindowtitle.aspx

answered Feb 16, 2012 at 17:46

JXITC

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Comments

REXXman · Accepted Answer · 2020-04-17 12:55:39Z

In the namespace section add this using statement.

using System.Diagnostics;

This example instantiated Excel with this:

_Application excel = new _Excel.Application();

This method kills the right Excel task by using the window handle.

    public void Kill()
    {
        Int32 ExcelHwnd = excel.Hwnd;
        Process[] localExcel = Process.GetProcessesByName("EXCEL");
        foreach (Process Pgm in localExcel)
        {
            // xlMinimized keeps the screen from flashing when the user interface is made 
            // visible with the excel.visible needed to set the MainWindowHandle
            excel.WindowState = XlWindowState.xlMinimized;
            excel.Visible = true;
            if ((Pgm.ProcessName == "EXCEL") && (ExcelHwnd == Pgm.MainWindowHandle.ToInt32()))
            {
                Pgm.Kill();
            }
        }
    }

This worked without fail.

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