X-plore File Manager!

File manager is a very useful application specially if you are Wappers many tricks are created using file manager, such as hiding file, hiding icon apps, editing apps, editing text file and creating wapsite. I can make a wapsite just using file manager but I suggest to use the most powerful file manager the X-plore

X-plore is a file manager for mobile devices,
with a wide range of functions on the phone's file system.

Features

* View all drives / folders / files on phone in tree view*
* Integrated text and image viewer
* View file details
* Edit file attributes (hidden, read-only, etc)
* Rename and delete files
* Create or edit text files
* Create folders
* Multi-selection
* Copy or move files and folders
* Send files via Bluetooth or infrared
* Extract files from Zip, Rar, Jar archives
* Pack files to Zip archive
* View Word documents
* Hardware device info
* View processes and tasks
* Built-in program updater
* Viewing, saving files in messaging folders
* Hex viewer and editor
* Search files
* Folder hotkeys
* Simple audio player
* Simple video player

You can visit thier site here:
http://www.lonelycatgames.com