eFile is a Internet software developed by DynoPlex, Inc. After our trial and test, the software is proved to be official, secure and free. Here is the official description for eFile:
BrothersoftEditor: eFile allows you to organize your files in a Windows-like environment on BlackBerry
Manage files of different types stored either directly on the BlackBerry or on a corporate network. Users can create Folders, rename files and MOVE them between directories in a one-step synchronization process using eFileDesktop Manager. File type associations allow for immediate application launch from eFile. Additionally, applications can be added to a cascading menu and to the launch bar.
Note to Developers: Developers can use the free eFile API to introduce uniform UI components to their applications, and allow users to store everything in one place. For developers, eFile creates a higher level interface than the existing BlackBerry storage functionality, providing the ability to manage created files visually through eFile's UI. Using eFile's SDKs, developers can introduce uniform UI components for file operations to their applications. File launch associations allow developers to register file types with eFile that, when selected, will simultaneously open the appropriate application for that file. you can free download eFile 4.3.027 now.