X-plore by Lonely Cat Games
Features:
View all drives / folders / files on phone in tree view
Integrated text and image viewer
View file details
Edit file attriutes (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 by Bluetooth or Infrared
Extract files from Zip, Rar, Jar archives
View Word documents
Hardware device info
View processes and tasks
Built-in program update
Viewing, saving files in Messagning folders
Hex viewer and editor
Search files
Folder hotkeys.