[stringer2008]

Получилось!!!

function loaderCompleteHandler(event:Event):void {

	try {
		var str:String = loader.data;
		str = str.replace(/(\n\r|\n|\r)+/g,"\n");
		txt.text = str;
		trace(str);
	} catch (e:TypeError) {
		trace("Could not parse the file.");
	}
}