What does your thread title have to do with your question?
Student or Learner
If i receive the email from my client ...and I replied given below answer:
Please find the process documentation file.
If you need any help don't hesitate to contact me.
Is it correct method or something else?
Please find enclosed/attached the process documentation file (for what purpose?)
I think it helps to state the purpose for sending something.
I am not a teacher.