PowerShell: Output Email Distribution Groups & Members to CSV

A PowerShell script I found to output email distribution groups and members to CSV.

# Initialize array with two fields:
# Distribution group, Members
$totalObj = @()

# Retrieve all DGs
$temp = Get-DistributionGroup -ResultSize Unlimited |
     
       # Loop through all distribution groups
       ForEach-Object {         
     
             # Add the members of the DG to an array
             [array]$mem = Get-DistributionGroupMember -id $_    
           
             # Loop through the DG and assign each member name to the variable $member
             for ($i = 0; $i -lt $mem.Count; $i++) {
                    $member = $mem[$i].name
                  
                    # Create instance of object of type .NET
                    $obj = New-Object System.Object
     
                    # Add the name of the DG to the object
                    $obj | Add-Member -MemberType NoteProperty -Value $_.Name -Name 'Distribution Group' -Force
                  
                    # Add the member name to the object
                    $obj | Add-Member -MemberType NoteProperty -Value $member -Name 'Members' -Force -PassThru
                  
                    # Add the object to the array
                    $totalObj += $obj
             }
       }

# Pipe output to .csv file
$totalObj | Export-Csv -Encoding 'Unicode' c:\Exchange_Groups.csv


# Add the name of the DG to the object
if ($i -eq 0) {
$obj | Add-Member -MemberType NoteProperty -Value $_.Name -Name 'Distribution Group' -Force
}