How to change the audio recording extension?

Related to below question.

I want to record audio and upload to server then being played in both android and ios but their extensions are different. How can I play recorded audio in both platform?

@dooboolab did you find a solution for this? i can’t get the recorder to prepare on iOS for anything other than .caf

Thanks that I have someone having the same problem with. I wrote the issue on the github expo and I don’t know why but they closed it. So I rewrote the issue again and am waiting to be solved. Not yet done for this. Please check out the issue and write some comments so they are aware of this problem and will give concern with this.