EXT with the TBAR button on the right side of the alignment

As indicated in the title:

The key is that“->”This is a filler element and the elements below will be right-aligned. Auto fill feature.

The main characters are “-” representing separatist influence

    tbar: ["->",{
        id: 'addExceltab',
        Текст: «Добавить файл Excel»,
        iconCls: 'ok-icon',
        scope: this,
        width:100,
        handler: this.openTab
}]