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.

Answer 1

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

Answer 2

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;
    }
 }

Answer 3

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);

Answer 4

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'.

Answer 5

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 { }
         }
     }

Answer 6

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.