What teh heck is this file I have?

[sixthcrusifix]

Yeah I found this file on my site, on my site and on my computer, but I have NO idea where it came from. It seems harmless but I can't tell if I'm using it or not. I'm trying to delete my unused files and make my site easier to manage but I can't tell if any files are reffering to this file or not, or hell maybe it's a useful file I wanna keep.
Any idea where it came from?

NOTE: The file is SO large that I have to post half of it here and the other half in a reply.

EDIT: The file was SO large (40,048 characters) That I just decided to link to its source:

http://crystalchasm.net/MAIN/TEST.txt

[lotsofish]

It's an include file for some bulletin board system.

[sixthcrusifix]

It's an include file for some bulletin board system.

oh okay, I have NO idea how it got there.