How to Open .WPS file

While downloading some files from gmail, I encountered a new file format today. It is .wps. I tried to open it by double clicking it, but it does not work.What to do? Asusual, it was again my friend,Google, who helps me every time in these kind of situations.
.wps file is for Microsoft Works. If you have MS Office 2007, then you can open it in MS Word.But not directly. Open MS Word,click the button at top left corner, click Open and go to the .wps file. Now you can read the content.