Can somebody help me export this script to TXT or CSV?

I've found a script that I'm using to discover all members and nested members of a distribution group.  The script is great, but I can't seem to find out how to export the tree view results to .txt or .csv

Any ideas?

Props to Hugo Peeters for the script!

###################################
# Get-MyGroupMembersRecursive.ps1 #
# Created by Hugo Peeters         #
# http://www.peetersonline.nl     #
###################################

param($ParentGroupNames)

$ParentGroupNames = 'xxxxxx'

$Global:myCol = @()

function Indent
 {
 param([Int]$Level)
 $Global:Indent = $null
 For ($x = 1 ; $x -le $Level ; $x++)
  {
  $Global:Indent += "`t"
  }
 }

function Get-MySubGroupMembersRecursive
 {
 param($DNs)
 ForEach ($DN in $DNs)
  {
  $Object = Get-QADObject $DN
  If ($Object.Type -eq "Group")
   {
   $i++
   Indent $i
   Write-Host ("{0}{1}" -f $Indent,$Object.DisplayName) -ForegroundColor "red"
   $Group = Get-QADGroup $DN
   If ($Group.Members.Length -ge 1)
    {
    Get-MySubGroupMembersRecursive $Group.Members
    }
   $i--
   Indent $i
   Clear-Variable Group -ErrorAction SilentlyContinue
   }
  Else
   {
   $userfound = Get-QADUser $DN | Select Name, Email
   Write-Host ("{0} {1}" -f $Indent,$userfound.Name)
   $Global:myCol += $userfound
   Clear-Variable userfound -ErrorAction SilentlyContinue
   }
  }
 }

ForEach ($ParentGroupName in $ParentGroupNames)
 {
 $Global:Indent = $null
 $ParentGroup = Get-QADGroup -Name $ParentGroupName
 Write-Host "====================="
 Write-Host " TREE VIEW PER GROUP"
 Write-Host "====================="
 Write-Host ("{0}" -f $ParentGroup.DisplayName) -ForegroundColor "Blue"
 If ($ParentGroup -eq $null)
  {
  Write-Warning "Group $ParentGroupName not found."
  break
  }
 Else
  {
  $FirstMembers = $ParentGroup.Members
  ForEach ($member in $firstmembers)
   {
   Get-MySubGroupMembersRecursive $member
   }
  }
 }
Write-Host ""
Write-Host "=====================" 
Write-Host " All Unique Members: "
Write-Host "=====================" 
$myCol | Sort Name | Select Name, Email -Unique