how to pipe ls into cat with xargs so that filenames are listed?

Question

For using cat to output *.txt files within a specific directory, how can I insert the filename as a "break" before each file?

file #1
contents of file

file #2
contents of file

ideally as an easy to remember few bash commands.

see also:

Why not pipe list of file names into cat?

Answer 1

One more option to @0stone0 answer You can use tail insted of cat:

tail -n +1 *

Output:

==> file-1.txt <==
contents of file


==> file-2.txt <==
contents of file