Dot What? - Version 1.2 Did you ever receive a file from a friend or from an internet download and wonder how to read it? Now-a-days, many files have some sort of 3 digit extension at the end of the name (ie. sit, hqx, psd), rendering it very difficult to determine the correct application to associate with them.Enter Dot What?... Simply launch Dot What?, type in the questionable file extension, and instantly be presented with its description, recommended application to open it with, and even a corresponding web site for each application! Why couldn't everything be this easy!? Dot What? features a database of over 2,000 file extensions, with constant updates.