Most of the programs that allow you to cut and fragment files into smaller pieces usually work either in units expressed in KB or in seconds (if it is a video or an audio). However, few can claim to be as accurate as this MRT Files Splitter.
Because MRT Files Splitter allows working at a byte level, being able to perform cuts byte by byte: more precision is impossible; Thus, the cut will be perfect and right in the place you indicate.
MRT Files Splitter not only allows fragmenting files into several segments, but also combining and overlapping them, in order to create a new file from other pieces already cut.
You can free download MRT Files Splitter 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.