I am able to write a (client-side) page that writes a file with a .sql extension. I can edit the file with notepad and everything looks okay. When I try to open it with javascript, it displays rubbish on the screen. When I rename the same file to have a .txt extension, the javascript works fine. below is my open and save code.
Thanks...

function doSave() {
    var win = window.open('', '_blank', 'top=10000');
    win.document.open('text/html', '_blank');
    win.document.charset="iso-8859-1";
    win.document.writeln(form1.textarea1.value);
    win.document.execCommand('SaveAs',true,'dbnet.sql' );
    win.close();
}

function doOpen() {
   var theFile=document.form2.InputFile.value;
   theNewFile=theFile.replace(/\\/g, "\\\\");
   var thisFile = new ActiveXObject("Scripting.FileSystemObject");
   var ReadThisFile = thisFile.OpenTextFile(theNewFile,1,false);
   var txtFile = ReadThisFile.ReadAll();
   document.form1.textarea1.value=txtFile;
   ReadThisFile.Close();
}