Excel spawned from powershell script not quitting [duplicate] - excel

Question

This question already has answers here:
Excel, save and close after run
(6 answers)
Closed 4 years ago.
We're migrating databases so I'm using powershell to modify the hundreds of excel files that reference to old DB instance to the new one. This is all fine and works as intended. The problem I have is that the Excel application will not exit when I'm done. The process will just hang around as a background process and I need to go into task manager to kill it. Not a huge deal but it is annoying. Here is my script. I'm on powershell v5 and Office 2016.
param(
[string]$search_root=$(throw "missing search root parameter"),
[boolean]$test=$true
)
echo $search_root
$NAMEPOSTFIX = '-Updated'
$OLDCONN = 'Data Source=abc;'
$NEWCONN = 'Data Source=xyz;'
$filelist = Get-ChildItem -Path $search_root *.xls* -Recurse -Exclude '*Updated.*'
$Excel = New-Object -Com Excel.Application
$Excel.DisplayAlerts = $False
function update_con_xls{
param($file)
$Workbook = $Excel.Workbooks.Open($file)
foreach($con in $Workbook.Connections){
if ($con.OLEDBConnection -ne $null){
$con.OLEDBConnection.Connection = $con.OLEDBConnection.Connection.Replace($OLDCONN,$NEWCONN)
}
if ($con.ODBCConnection -ne $null){
$con.ODBCConnection.Connection = $con.ODBCConnection.Connection.Replace($OLDCONN,$NEWCONN)
}
}
$Workbook.Save()
$Workbook.saved = $true
$Excel.Workbooks.Close()
}
foreach ($file in $filelist) {
echo $file
if ($file.Extension -eq '.xls' -or $file.Extension -eq '.xlsx') {
$newfile = ($file.DirectoryName + '\' + $file.BaseName + $NAMEPOSTFIX + $file.Extension)
if($test){
echo $test
$newfile = ('C:\test\' + $file.Name) #for test run to copy coppy locally
}
Copy-Item $file.FullName -Destination $newfile
update_con_xls($newfile)
}
}
$Excel.Quit()
$Excel = $null

Answer 1

Maybe change:
$Excel.Workbooks.Close()
to :
$Excel= New-Object -ComObject Excel.Application;
$Workbook = $Excel.Workbooks.Open($file);
$Workbook.Save();
$Workbook.Close(); # <--- try
$Excel.Quit();
Remove-Variable -Name Excel;
I do not see anything here that could close your ODB and OLEDb connection trying to add:
$con.OLEDBConnection.Connection.Close();
$con.ODBCConnection.Connection.Close();
or
$con.OLEDBConnection.Close();
$con.ODBCConnection.Close();
after your work is finished.