Open Hangul (.hwp) files in Microsoft Word or HWP Viewer

Let's say a Korean co-worker sent you an .hwp file, but you don't have Hangul Word Processor on your computer. You can choose one of these methods to open it:

1.  Stand-alone HWP Viewer application 

Windows

The 2014 version of Hangul Office seems to no longer offer a stand-alone viewer. However, for now, viewers for previous versions seem to be working well. While no longer officially available (I can't find them on the Hancom website, at least), several other sources have them for downloading such as [here], [here] or [here]. You could also try the 60-day trial but no thanks.

 Mac

Interstingly, Hancom does still officially offer the Mac (.pkg file) version of the viewer. [Click the disk icon in item #2 to start the download]. Or you can grab it from the Mac App Store.

Android

There's an Hancom Viewer app and a full mobile Hancom Office app. Sure, if you're desperate.

2. Microsoft Word converter

Microsoft themselves seem to offer a converting program that will let you open .hwp files in Word (File -> Open) or batch-convert files to .docx.