gimgunlock for Mac is old you need the latest gimgunlock+ mapsigpatch (Windows only) for these latest signed topo maps, so install virtual Windows on Mac (recommended if you want to use "free" stuffs ) or get a pc.

a .BAK file is a backup file left by some programs when you modify the original file.

gimgxor: Some maps have been scrambled by a trival XOR algorithm. They do
not work with other gimg* tools. You can use gimgxor to unscramble them.
source:
Code:
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