Beg your pardon, I've been too busy to do anything about this. I hope to have some spare time this evening, and will look into it then. I'll set the Mac over where I'll see it when work is done.
[edit] Righty, here's how to search for all world files on your system, wherever they are. If you're already familiar with Terminal operations, skip right to the command in green.
On your Mac, bring up a Terminal window. To do this, bring up the search, then type
terminal in. The "top hit" should have an icon of a black rectangle with small characters in it. Click that to start the terminal emulator.
You should see a blank text-mode window with a prompt something like this, with your Mac's name and your username instead of mine:
MacBook-Pro:~ bethany$ _
The _ will be a blinking cursor where you will type in a command. The text in green below is the command you should type, or copy and paste:
MacBook-Pro:~ bethany$ find / -name '*.wld' -print 2> /dev/null
Press the Return key and the find utility will display the names of all files whose names end in ".wld" along with the path to each. Replace wld with plr to find player files.
This command will search your entire hard drive. This could take a while, and you might not see anything happen for some time. To search just folders (subdirectories) under your home, which takes less time but might not catch all files, replace
/ with
~ in the command above.
Hope this helps!