File reading and Writing on esp32


I’m trying to read and write a file on esp32 devkit, but it doesn’t work.
I see the following thread.

It says that a SD card should be connected to use file reading and writing command on esp32.
It’s the article three years ago. Zerynth doesn’t to support file read and write on esp32?
Is it necessary to use SD card to create/read/write the file on esp32?

Yes, for handling files ,the easiest way is to use SD Card and FATFS module.
check this example for more details.

Thanks for your help.