To browse the files on your NOOK Tablet, go to the Library, and tap “My stuff”→My Files. You come to a screen that’s divided in two—on the left you find My NOOK, and on the right, Memory Card. Tap My NOOK to browse the folders built into the NOOK’s main memory, and tap Memory Card to browse the memory card. If you haven’t installed a memory card, only My NOOK appears.
Tap the folders as described in Note. So to look at your Music files, head to Music, for example. If you’d like to see all the files you downloaded from the Web to your NOOK, tap My NOOK, and then go to My Files→My Downloads. Tap any file to open it in the Gallery.
To delete a file, hold your finger on it, and then select Delete from the menu that appears.