Opening .run file in Ubuntu 11.10

I was working with ExtJS and found Sencha Architect 2, a GUI tool for writing ExtJS. I thought of trying it and downloaded it from INTERNET. But to my surprise, I got a .run file copied to my hard drive. After searching a bit I got to know about .run file. A .run is a packaged format which contains software and a small program to install the software.

To open .run file in Ubuntu 11.10, follow below steps.

1. Right click on the .run file
   
2. Select properties
   
3. Open permissions tab an make sure "Allow executing file as program" is checked.
   
4. Double-click the .run file to open it. A dialog box should appear and follow on screen information.