Change password Powershell

I found this nice little script that will help me change my passwords.  It seems to work, but I do not get any output.

PS C:\ChangeAdmin> .\change.ps1
PS C:\ChangeAdmin>

It appears to be written to dump stuff to excel (there is no excel installed on the server I am running the script from), but I can't find any excel file.

In addition to the excel format, how would I make this dump all the actions to the screen in addition to the excel file, so I can check the work and modify if needed?

# Credit to http://myitforum.com/cs2/blogs/yli628/archive/2007/08/23/powershell-script-to-change-administrator-password-on-a-list-of-machines.aspx
 
$erroractionpreference = "SilentlyContinue"
 
$a = New-Object -comobject Excel.Application
$a.visible = $True
 
$b = $a.Workbooks.Add()
$c = $b.Worksheets.Item(1)
 
$c.Cells.Item(1,1) = "Machine Name"
$c.Cells.Item(1,2) = "Password Changed"
$c.Cells.Item(1,3) = "Report Time Stamp"
 
$d = $c.UsedRange
$d.Interior.ColorIndex = 19
$d.Font.ColorIndex = 11
$d.Font.Bold = $True
 
$intRow = 2
 
foreach ($strComputer in get-content C:\MachineList.Txt)
{
$c.Cells.Item($intRow,1)  = $strComputer.ToUpper()
 
# Using .NET method to ping test the servers  This is very cool!
$ping = new-object System.Net.NetworkInformation.Ping
 
$Reply = $ping.send($strComputer)
 
 
if($Reply.status -eq "success")
{
# This is the Key Part
$admin=[adsi]("WinNT://" + $strComputer + "/administrator, user")
 
$admin.psbase.invoke("SetPassword", "Whatever1")
 
#$admin.psbase.CommitChanges() - I am surprised that I don't have to do this!
 
# If this is for AD account, we could use PasswordLastchanged attribute. But WinNT provider does not #support the PasswordLastChanged attribute!
 
# I was trying to use passwordage attribute value but somehow I found it give you the value for last time, #may be because there is a delay for this attribute to propagate. So I made an executive decision to test #if passwordage is $null  so this may not be 100% accurate.
 
$pwage = $admin.passwordage
 
If($pwage -ne $null)
{
$c.Cells.Item($intRow,2).Interior.ColorIndex = 4
$c.Cells.Item($intRow,2) = "Yes"
}
Else
{
$c.Cells.Item($intRow,2).Interior.ColorIndex = 3
$c.Cells.Item($intRow,2) = "No"
}
}
Else
{
$c.Cells.Item($intRow,2).Interior.ColorIndex = 3
$c.Cells.Item($intRow,2) = "Not Pingable"
}
 
$c.Cells.Item($intRow,3) = Get-Date
 
$Reply = ""
$pwage = ""
$intRow = $intRow + 1
}
$d.EntireColumn.AutoFit()
 
#cls

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