The normal procedure would be a motion to quash, but you need to be mindful of the law and motion cutoff date. You'll need to get a hearing date form the judge's calendar clerk and file a motion with legal arguments, proper notice of the hearing date and declarations or other evidence showing the legal reasons to void the subpoena.
Without knowing your reasoning for not wanting the documents to be produced, I can only guess at what legal reasons you might have for excluding this evidence. So far, you haven't provide a sufficient legal reason.
The fact that you are asking this question is evidence that you need an attorney. I suggest that you contact one as soon as possible.
First, the firm is a debt relief agency according to the U.S. Bankruptcy Code. We help people file for bankruptcy. We also do other stuff and we do it well, but Congress wants me to post this notice. Second, nothing on this site is legal advice. You are not my client unless you enter into a written agreement signed by you and me.
You must follow all of the court rules exactly. Also, you have a very short time period in which to "meet and confer" with the opposing attorney and then to file a motion for a protective order.
I'm going to give you a different way to look at it: Do the records hurt you or your case to have them part of the case? If no, then I wouldn't worry about the subpoena. If yes, then you need a valid legal reason to quash and if you are needing to quash, then you probably need an attorney on a practical level.
Good luck with your situation.