Sites that convert Word files to the popular eBook formats are popping up all over the place. The online-conVert.com site offers a lot more conversion options than that, but most self-publishers are interested in how to create eBooks. So if that’s what you want to do, go to the site, select the format you want from the dropdown in the Ebook Converter section, and then upload your Word file.
I haven’t used the converters at online-conVert.com, so I have no idea if they’re any good. I’d suggest trying them out with a test file before trusting the site with your masterpiece.
As usual, for best results when converting from Word to another format, make sure you’ve formatted your Word file with the end result in mind. Throwing any old Word file at a conversion tool and expecting a pretty file to come out the other end will only end in tears.