Moving files from the Samsung Tab S tablet's main HD to the microSD card
Open the "My Files" app that comes with the tablet. In the left panel, select “Device storage”. Then in the right panel , select the folder containing the file(s) to be moved.
Inside this folder, select the file to be moved keeping your finger on the selection until a green arrow appears in your selection. On the right side of the Menu Bar at the top of the screen an icon with a right arrow will appear. Select this icon. Choice of “Cancel” and “Move here” will appear. In the left panel, select the destination folder. Select the “Move here” option in the right side of the Menu Bar to drag and drop to this folder you want your file in. Progression of the file transfer will e displayed on the screen.