There are various utilities that can be used to edit packet captures. Which utility you use depends on what you are trying to do. Wireshark has useful utilities for this purpose, but good tools also exist in other software suites. This section covers editing, adding, removing, and converting data in packet captures.
Put a hex on your hex
I am still making order out of chaos by reinvention. — John le Carre
Edit packet captures after they have been taken
Merge captures together
Convert hexdumps to packet captures
Put a hex on your hex