NEINedit is a Mac OS X tool that enables users to open, edit, and save NBT Files. It features the ability to read and write NBT Files (.nbt, .dat, .dat_old), display the entire file with TAG infos for each entry, and modify values for Byte, Short, Int, Long, Float, Double, and String. System Requirements: Intel or PowerPC Processor with Mac OS X 10.4 or higher.
