Hiew v7.51
a very known and powerful hex-editor
http://www.hiew.ru
unpack and start hiew.exe
READNFO:
After obtaining the license key you will receive full functional
pre latest version. In two months you will start receiving program
updates and get latest version. Sorry for inconvenience. This period
is necessary for full identification of credit cards and not include
in 1-year period.