I want to use external flash to store mp3 file and play it when needed using M65 module

I am working on a project where I need to play audio and i want to store the audio file in NOR Flash and play the audio from there. I have got a QuecOpen M65 module. I was able to read and write on NOR Flash using SPI but have no Idea how to Write File into the flash.

NorFlash Have you been able to read and write normally?

You can’t port the file system now, can you?