Chances are it's a permissions issue. You should always check that your calls to open() succeed. It's common to do it something like this:

open(TEST, ">>path\textNX.txt") or die "Couldn't open path\textNX.txt:
+ $!\n";
[download]

Do that. Try again. Then check your error logs.

Actually, another thing stands out to me. That filename won't be what you expect. That backwhack-t in "path\textNX.txt" is a tab. Either use two backwhacks, single quotes, or forward slashes.

Update: And you've forgotten your dollar sign before 'path' in your call to open.

-sauoq
"My two cents aren't worth a dime.";