New tool maybe?

Learning as I am, I get REAL tired of modding a sh*t load of files
with Notepad, Hex editers, and such.
THEN find out they cause CTD!!
I'm looking at doing a Drag and Drop tool that can do all the work for me.
Face it, if you do a task OVER and OVER with the SAME files,
a tool CAN be written to do it!!!

Any suggestions as to where I should start and any data bases that could
speed the development time will help.

This will be a C++ application.

Thanks