How to create an Empty Playlist File on Mac?

Hello everyone, I'm working on a Music Player script, I was able to play a file via the default player as when we doubleclick on a file. The problem is I have no control over the Player, so to "stop" a file I could play a "silent" mp3, one with 1 second of silence in it for example. I discarded the idea since I had to distribute this silent.mp3 file along with the script. A better option is to play a "playlist", since playlist files are text only, I could create them an empty playlist file on the fly...
so, the question is, what's the default playlist extension on a mac? and how to create one on the Mac?
in windows the default player is Windows Media Player, the default playlist file extension is *.wpl.
here's the contents of an empty playlist
<?wpl version="1.0"?>
<smil>
    <head>
        <meta name="Generator" content="Microsoft Windows Media Player -- 12.0.7601.18150"/>
        <meta name="ItemCount" content="0"/>
        <title>empyPlaylist</title>
    </head>
</smil>
here's the script, so far Windows only, at least to stop the file being played.
// script.name = musicPlayer_Windows.jsx;
// script.needs = I need to create an Empty Playlist File for the Mac, that will play on the default music player when executed
// carlos canto, 10/12/2014
var w = new Window('dialog', 'Music Player');
var btnFile = w.add('button', undefined, 'Select an *.mp3 file to play...');
var lblSong = w.add('edittext', undefined, '');
lblSong.characters = 30;
var btnPlay = w.add('button', undefined, 'Play');
var btnStop = w.add('button', undefined, 'Stop');
var btnClose = w.add('button', undefined, 'Close');
btnPlay.enabled = btnStop.enabled = false;
var emptyPlaylist = getEmptyPlaylist ();
btnFile.onClick = function () {
    var file = File.openDialog ("Select File to Play...", '*.mp3', false);
    lblSong.text = file.displayName;
    lblSong.file = file;
    btnPlay.enabled = btnStop.enabled = true;
btnPlay.onClick = function () {
    lblSong.file.execute();
    $.sleep (300);
    BridgeTalk.bringToFront('estoolkit');
btnStop.onClick = function () {
    emptyPlaylist.execute();
    $.sleep (300);
    BridgeTalk.bringToFront('estoolkit');
btnClose.onClick = function () {
    w.close();
w.show();
// this function creates an Empty Playlist file (Windows) on the fly, this file will be used to "stop" a playing file
// I need a similar function for Mac
function getEmptyPlaylist () {
    var desk = Folder.desktop;
    var f = new File(desk+'/emptyPlaylist.wpl');
    if (!f.exists) {
        var s_emptyPlaylist = (new String("<?wpl version=\"1.0\"?>\n<smil>\n    <head>\n        <meta name=\"Generator\" content=\"Microsoft Windows Media Player -- 12.0.7601.18150\"/>\n        <meta name=\"ItemCount\" content=\"0\"/>\n        <title>empyPlaylist</title>\n    </head>\n</smil>\n"));
        f.encoding = 'utf-8';
        f.open('w');
        f.write(eval(s_emptyPlaylist));
        f.close();
    return f;
thanks in advance
Carlos

hmm...I think it's going to be more complicated than I thought.
correct, this script targets the ESTK, it is part of a larger Illustrator script, which doesn't have doScript either...I would go with applescript as last resort. I think going with the playlist file is easier.
based on your comment I realized users might change their default players, so on Windows I'm going to change the playlist file from *.wpl to the more universal *.m3u, I guess whatever decent player made the default, supports this file.
so, will an *.m3u playlist file play on the default mac player (itunes) when executed?
File("~/Music/iTunes/iTunes Media/Music/emptyPlaylist.m3u").execute(); // will this play on itunes?
I noticed that the *.m3u file can be blank, it will still "play" when executed() and effectively "stops" any music file currently being played...if this happens on Mac also, that's what I'm after.
thanks for helping Dirk.

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