import-module ActiveDirectory 
#create Excel Workbook 
$Excel = New-Object -Com Excel.Application  
$Excel.visible = $True  
$Excel = $Excel.Workbooks.Add()  
$wSheet = $Excel.Worksheets.Item(1)  
$wSheet.Cells.item(1,1) = "User:"  
$wSheet.Cells.Item(1,2) = "Last Login:"  
$WorkBook = $wSheet.UsedRange  
$WorkBook.Interior.ColorIndex = 45  
$WorkBook.Font.ColorIndex = 1  
$WorkBook.Font.Bold = $True  
$users = Get-content input.txt 
$dcs = Get-ADDomainController -Filter {Name -like "*"} 
$time = "Never" 
$intRow = 1 
$intRow++ 
foreach ($user in $users){ 
foreach($dc in $dcs){ 
$hostname = $dc.HostName 
$1user = Get-ADUser $user | Get-ADObject -Properties lastLogon  
if($1user.LastLogon -ne $null){ 
$dt = $1user.LastLogon 
$time = [DateTime]::FromFileTime($dt) 
} 
} 
$wSheet.Cells.item($intRow,1) = $user 
$wSheet.Cells.Item($intRow,2) = $time 
$intRow++ 
} 

UserName
SamAccountName