stage action append the text data in a loop to a file

Summary:

Hi Experts

I have a requirement in integration to write the string data in a loop to a file using stage action i.e. append the string data to the file in each loop iteration. How to do this please help

iteration 1:

My name is Rahul, I'm from Mumbai.

iteration 2:

I study Business studies at Mumbai University.

iteration 3:

I want to master the business studies.

Output of the file at the end of iteration must be like below:

My name is Rahul, I'm from Mumbai.

I study Business studies at Mumbai University.

I want to master the business studies.