How do you save files?

Its not that i cant save a file, i just dont know how. I made a small animation and i saved it, and i can open it and look at it and stuff (i can even view it in quicktime) but i dont know how to get it on the internet? Is there a certin file format that it needs to be in to be placed on the internet (sites like Deviant Art/Youtube/NewGrounds). And if it needs a certin file (example: .pdg/.jpeg)
can you please list them and tell me what each one means. Or atleast tell me what i need to like be able to put the animation on the internet? I have Toon Boom Studio 4 and i have Quick Time. Do you export it into something? I dont get it @_@ Any help will be appreciated.

~ thanks in advance

http://www.toonboom.com/support/forums/toonBoomStudio/index.php?board=30;action=display;threadid=4154;start=msg17025#msg17025