Many journals won't take LaTeX files and insist on a word format. There's no great solution to this problem, but here are the best
Latex2rtf is my go-to program. It is very simple to use, and handles many basic formating issues. If you keep your latex document simple, this will do the trick.
TTH - works very well, but doesn't handle a lot of special formatting. It converts equations to text rather than images.
This is a TEX --> html converter and uses a command-line interface.
This is my go-to option for converting tables into an Excel-readable format.
Pandoc handles simple LaTeX files and can convert them to a number of formats that Word will read:
Hyperlatex is a solution that employs emacs macros. In my experience, it doesn't work terribly well. Latex2rtf and TTH seem to work better.