replace string with tab dont work/ or how to?

I have text input that are comma seperated like this:

1000,6617598.796,1468321.754,128.660,62

And my desired output should be tab seperated but I dont succed doing that with StringConcatenator.

It should be pretty easy =)

I am attaching a zip with 3 files

1. "Text_in" ( Input file)

2. "Text_out" ( FME generated output file)

3. Correct desired output "correct_output."

4. A FME template with the input file with some annotations.