Map Editor

[Duni]

Heys guys, i wanna make map editor , but i don't know few things.
how map editor exports file, map i mean? array or what, for example: runescape or world of warcraft or other mmorpg's?
how actualy map editor/terrain editor works? does anyone have any open-source or tutorial on making it?

[princec]

Hi there, this is probably the wrong forum for an answer to this question Would you mind crossposting to www.javagaming.org where there are likely a lot more people reading?

Cas