Backscatter values to Excel or CSV format

Can i Export backscatter values to Excel or CSV format by SNAP toolbox?
Thanks all…

There is a CSV option under File -> Export. Is that what you want?

By this system, i found a CSV file but in this file there is no information.
i just need backscatter values that is exported from the processed image.
Plz help me.

Open you product, click on the name of the band that you want to output to highlight it, click on File -> Export -> CSV to export it. Then you have band data saved in a CSV file in ASCII format.