BAH! I have so much difficulty finding the right editor... In starcraft maps some of the maps have effects like nuke dot and things that are no in x-tra edit or so I think... I need help if it is in X-tra edit or if not, where to get it??
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SCMDraft is much more powerful than X-tra, and so is Starforge (except it's very buggy, and only useful for its trigger editor and sprite disabling capabilities). For most cases, you should use SCMDraft.
(search on google, you'll find it)
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... Killer, if you google it, the download page for it on stormcoast is the first result.

Besides, what does it matter where you download it from, as long as it doesn't have viruses and it's the newest version?
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