In order to use Store Commander's CSV export tool, you might first need to connect to your FTP to create the following folders:
These folders must be configured with the same write permissions as the parent folder /SC/.
Please refer to article 'Modifying Store Commander's files and folders permissions'.
If Store Commander is installed in your /adminXXX/ directory, a update to the /modules/ version is recommended. Please refer to this article for the detailed procedure.