$filename = "C:UsersHuyzieDesktopBestandnaam.txt"
$fileContent = get-content $filename
$outString = ""
foreach($char in $fileContent.ToCharArray()){
        if($char -eq " "){
           $outString += "032 "
        }else{
              $outString += [string][byte][char]$char + " "
        }
}

$outString > "C:UsersHuyzieDesktopBestandnaam_ascii.txt"