Macros/Gear-Sets/Maps - Inquiry

[Alhanelem]

I've been looking around for a more solid source of info an found sketchy stuff/guess-work/incomplete info at best.

Is there a solid source on knowing which files are macros/gear equips-lockstyles/map markers?

I want my own manual backups on an SD card, long story short.
It'd also be nice to be able to share the macros/equip-sets/map markers with friends.

I just copied the entire folder, I know that's not the advice you're looking for, but it honestly makes more sense than picking out individual files. But you may have a specialized purpose, and at least for me, the relevant files are located here:
D:\Program Files\PlayOnline\SquareEnix\FINAL FANTASY XI\SquareEnix\FINAL FANTASY XI\USER\bae7d6
(Note that I specifically installed the game to Program Files and not Program Files (x86), so change as appropriate)

I'm not really sure the macro book files (99% sure the MRK files are the macro book files) are useful just by themselves, but I did some searching on my own to see if anyone's talked about this and came up dry as well.

That being said: The server backup feature works just fine, I used it to restore my macros and such after building a new PC and it worked flawlessly. No need for any manual file copying. Just press + at the character select screen or use the mouse to access the menu in the top right corner. Just something to consider.

Offering this out of genuine desire to help.