Rupak Loodh

Hello Stephan,
Thank you very much for your valuable information. Now I can identify the difference between the import data and the non import data. Thanks again for your support...
Regards,
Rupak Loodh
Dhaka University,
Bangladesh.

Hi Ricardo Machado,
This is a screenshot including where I facing the problem. I am facing a problem to use the img tag here. So I am giving my dropbox link of image.  https://www.dropbox.com/s/dldvntr0gl17ag1/bk_gd_import.png?dl=0.

In there, I need to Import data from background. But when I try this it does not work or does not select any data from the background. That's why I can't import any data from the background.  Would you kindly inform me what is the exact reason for this.

For the bathymetry interpolation, I need to Import data from background. But when I try this it does not work or does not select any data from the background. That's why I can't import any data from the background.

I don't know what is the exact reason for this.

Please anyone help me to fix the problem.
Thanks