This is an SNES Utility that allows you to extract a subset of a ROM and save it to a separate file, or reinsert a chunk of ROM data back into a ROM file. These allow translation of Chrono Trigger into other languages.
A backup for 3.01 is available here with a plugin architecture 1.00 backup here.
Get the latest version and plugin architecture here. A plugin architecture lets editors add their own functionality to the program. Temporal Flux is a spectacular editor that can work with dialogue, locations, and overworlds, and in the future will be the vehicle for editing everything in the game.