Open a file in flex 3

How can I create a .txt file using flex 3? A开发者_JAVA技巧nd I want to write some datas in to this file...... Is it possible? Any one can help me?

Thanks in advance.. Nimmy

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//set File object    
var file:File=File.documentsDirectory;

    file=file.resolve(“myFile.txt”);
//set Stream object
    var stream:FileStream=new FileStream();
//set FileMode
    stream.open(file, FileMode.READ);
    var data:String= stream.readUTFBytes(Stream.bytesAvailable);
//close file
    stream.close();

different FILEMODE:

FileMode.APPEND: write only, append new data to the bottom of the file;

FileMode.READ: read only, file must exist;

FileMode.UPDATE: both read / write the data where positioned where you want;

FileMode.WRITE: write only , if file doesn't not exist, will be created otherwise will be overwritten;