A (double) left-click on a file opens it with the default application while a right-click offers a menu with the option to open the file with a different application. You get the choice to pick another application that added itself during installation to that menu or to browse your computer for another application not in that list.
That's great if you open specific file types with a particular program most of the time, but need to open it using a different program every now and then. A simply example where this comes in handy is when you want to edit an image file type.
Normally, you may want to open images in an image viewer and not an image editor. Open With comes into play when you need to open an image in an editor instead.
Sometimes however the choices are kinda strange and do not make sense at all. If I choose the Open With option for a text document on my computer I get to choose between Notepad++ (default), Firefox, Office and Thunderbird. At least two of those applications do not make sense in my opinion.
Open Expert is probably the best application to configure the available applications for the Open With dialog for each file type in Windows. A list is populated with all Open With programs after selecting a file type from the list of available extensions.
Each program in the list can be rearranged in position or removed from the list completely. Alternatively new programs can be added from the hard drive. Open Expert is easy to use and the results are immediately visible.
Easily open your graphic files in your favorite paint programs or view your HTML files in either Netscape or Internet Explorer, just with a few mouse clicks. You can even add different versions of the same program to the OpenExpert menu.
The screenshot below shows how it works: Right-click your file, point to "Open with" and then just click on the program which should open the file. That's how easy it is!
Update: Please note that the program is only compatible with Windows XP and earlier versions of the Microsoft Windows operating system. The program is free for personal use.
If you run it on a newer version of windows, you do not get the list of programs that are mapped to the file extension. The program works well if you are running Windows XP though.
Note that the developer website is no longer available. You can still download the application from a third-party website such as Softpedia.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.