This function allows sections of a file to be extracted and a new file created from these fragments. It can be a useful tool if doing manual data carving, and wanting to reconstruct a file.
A fragment can be any length of sectors. To aid with file creation, the location that the fragment is stored in can be defined (as sector offset).
The utility is used by entering the start sector, and then either the length or end sector. If the offset is set as zero, then the section will be appended to the previous section.