excel attempt

   function exportAll() {
        if (getFormIdFromStore()) {
            window.open('/image_set/' + get_asset_set_id() + '/assets.xls?form_id=' + getFormIdFromStore(), 'Excel Download', 'width=300, height=200');
        } else {
            window.open('/image_set/' + get_asset_set_id() + '/assets.xls', 'Excel Download', 'width=300, height=200');
        }
    }

    var fp = new Ext.FormPanel({
        fileUpload: true,
        frame: true,
        bodyStyle: 'padding: 10px 10px 0 10px;',
        labelWidth: 50,
        defaults: {
            anchor: '95%',
            allowBlank: false,
            msgTarget: 'side'
        },
        items: [
            {
                xtype: 'fileuploadfield',
                id: 'form-file',
                emptyText: 'Select an Excel file',
                fieldLabel: 'File',
                name: 'data_file',
                buttonText: '',
                buttonCfg: {
                    iconCls: 'upload-icon'
                }
            }
        ],
        buttons: [
            {
                text: 'Import',
                handler: function() {
                    if (fp.getForm().isValid()) {
                        fp.getForm().submit({
                            url: '/image_set/' + get_asset_set_id() + '/assets.xls',
                            waitMsg: 'Importing your excel file...',
                            success: function(fp, o) {
                                uploadExcel.hide();
                                msg('Success', 'Import complete');
                                imageStore.load();
                            },
                            failure: function() {
                                msg('Error', 'Your import did not complete successfully.');
                            }
                        });
                    }
                }
            },
            {
                text: 'Wipeout',
                handler: function() {
                    fp.getForm().reset();
                }
            }
         ]
    });