Microsoft ebooks are stored in "Libraries" and opening and viewing a Microsoft ebook is as easy as opening the the Microsoft Reader software and browsing through it's library. The library will contain all the ebooks which you have acquired. Because each copy of the ebook software stores your identification and because your ebooks are personalized to those copies of the ebook reader software, you do not have to provide proper identification when you open your ebook for the first time. All Microsoft ebooks have file names that end with the following string of text: ".lit" and to locate all of your Microsoft ebooks, you can search your computer for files with this text.