Office Home provides multi libs to manage the office files in your computer. Each lib relates a folder in your computer. One lib can be listed in the task pane at a time. Office Home provides a convenient feature for Microsoft Office Applications. If you double click a word document file in the lib task pane of Microsoft Excel Application, the document will be opened in Microsoft Word Application, and the lib task pane will be displayed on the left in Microsoft Word Application too. It does so in each of Microsoft Word, Excel and PowerPoint Applications.