You can store multimedia files in your tablet’s internal memory
for easy access to all your multimedia files. Use this app to view
multimedia files like pictures and videos.
From the Home screen, tap Apps 
(in the Quick
Access Bar) > Gallery 
. You can
also access the Gallery directly from the home
screen. You can manage and share all of your image and video files
with the Gallery app.
NOTE
Some file formats are not supported, depending on the software installed on your tablet.
Some files may not play properly, depending on how they are encoded.