I have a file called data.txt on my host that data is appended to. It was uploaded along with a few other files, to view it the file it should be something along the lines of host.com/dir/data.txt

When i view the file it doesn't open and get left with this error "Oops! This link appears to be broken."

I've tried re-uploading , renaming and everything, html files and php files open in the same directory, why is my txt file broken ?