I have A galaxy tab 4 ND my sd card just started saying blank or unsupported format. I do not want to lose my data

Thermosman

Estimable
Jun 6, 2015
1
0
4,510
I just turned my tab on completely and it gives me the error message "Blank SD Card; SD card is blank or has unsupported file format. I DO NOT want to format the card. Pleawe help me.