To determine the ACL’s on a specific foldertree use the following script. It will display the Path, FileSystemRights, IsInherited, Name of the underlying folders.

$path = "\\server\path\"
$targetFile = "file.csv" # Not working yet

$foldersToQuery = Get-ChildItem $Path | Where {$_.PSIsContainer} | select -expandproperty FullName

   # Get access list, change any domain
foreach ($folder in $foldersToQuery) {
    $Access = (Get-Acl $Folder).Access |
      Select-Object @{n='Path';e={ $Folder }}, *,
        @{n='ADObject';e={ 
          If ($_.IdentityReference -NotMatch "^(NT AUTH|BUILTIN|$($Env:ComputerName))") {
            $Searcher = [ADSISearcher]"(sAMAccountName=$($_.IdentityReference -Replace '^.+\\'))"
            $Searcher.PropertiesToLoad.AddRange(@("name", "distinguishedName", "objectClass"))
            $Searcher.FindOne()
        } }} |
      Select-Object *, @{n='Name';e={ $_.ADObject.Properties['name'][0] }},
        @{n='DN';e={ $_.ADObject.Properties['distinguishedname'][0] }},
        @{n='Class';e={ ([String[]]$_.ADObject.Properties['objectclass'])[-1] }} -Exclude ADObject

      $Access | ForEach-Object {
        $Entry = $_
        If ($Entry.Class -eq 'group') {
  
          $Searcher = [ADSISearcher]"(memberOf:1.2.840.113556.1.4.1941:=$($Entry.DN))"
          $Searcher.PageSize = 1000
          $Searcher.PropertiesToLoad.AddRange(@("name", "distinguishedName", "objectClass"))
          $Searcher.FindAll() | ForEach-Object {
            $ADObject = $_
            $Entry | Select-Object *, @{n='Name';e={ $ADObject.Properties['name'][0] }},
              @{n='DN';e={ $ADObject.Properties['distinguishedname'][0] }},
              @{n='Class';e={ ([String[]]$ADObject.Properties['objectclass'])[-1] }} -Exclude Name, DN, Class
          }
        } Else {
          $Entry
        }
      } | ft Path, FileSystemRights, IsInherited, Name, class -AutoSize  

}