WinHex is a universal hexadecimal editor, particularly helpful in the realm
of computer forensics, data recovery, low-level data processing, and IT
security. An advanced tool for everyday and emergency use: inspect and edit
all kinds of files, recover deleted files or lost data from hard drives with
corrupt file systems or from digital camera cards.Perfectly for *RSC edit!!!!

how to use it? or is that program can use for cracking .app in symbian program?