Opening files partially (command File/Open partially...)
If you want to edit a very large file and it's not necessary to
load all of it into memory, choose this command. First you will
have to choose the file you want to open in a File-Open-dialog.
Then you must enter the offset from which the file will be loaded
and how many bytes to load, or you can check the "Open
partially from end of file"-radio button if you want to load
data from the end of the file. Translhextion will now be in
partially-opened-mode, which means that whenever you choose the
File/Save, the data will be written back to the position they
were loaded from. This mode is indicated by a letter "P"
in the window title after the file name.