How to backup a rooted Samsung into a csc file

Essentially, I have a Samsung Tab A7 that I rooted with Magisk, and it got damaged due to me dropping it, however, I have warranty and they will fix it for me. I was wondering if there is a way to save all the data into a single file, the csc one used when flashing the firmware, so that I can flash it to the new device after unlocking the bootloader and easily keep all data and root, without having to go through the hassle of rooting reinstalling and restoring data. Also, I do not have a custom ROM, only magisk.