Hi,
With S32DS and multilink, you can try the follow steps to dump flash or RAM data into file.
1. Attach (https://community.nxp.com/t5/S32-Design-Studio/How-attach-to-running-program/m-p/1030375)
2. Export the data which you need (https://community.nxp.com/t5/S32-Design-Studio/S32DS-how-to-properly-dump-RAM-in-debug-session/m-p/6...)
Cheers!Oliver