You can move, copy, delete, or create new files and folders in your device memory or on the memory card. If you organise your files into their own folders, it might help you find the files in future.
Select Menu > Applications > Gallery .
In the folder where you want to create a sub-folder, select Options > Add folder .
Select and hold the file, and from the pop-up menu, select the appropriate option.
You can also play music or videos, or view pictures in Gallery.