Secondly, you can't use it as a backup system. For one, you lose your PC's local storage. Though the conventional method of backup and sync is great, it carries a few limitations. And the fact that the Drive is accessible from anywhere (even from your smartphone) is the added bonus. This powerful platform is capable of storing different file types such as APK, XLS, and CSV, apart from the standard file formats. Calling Google Drive a simple cloud storage system, will be an understatement.