Like I've stated in my previous reply, I found it in a website's directory that should not be accessible regularly for normal site-goers and obviously, I have opened it up on notepad to check the encoding to see if there is any sussy malware code written. It didn't so the file checked out clean.
You're right it shouldn't be accessible to random visitor. In addition, it doesn't seem to be indexed by Google search engine either. But it's also possible that it's honeypot set by owner the website.