File extension info

I was not able to play a movie and i was not able to view it using a player and then i saw the file extension and came to know a lot about file extensions from a website which is really awesome with over 1000 file extensions...There are many like file extension daa , exe, iso and many more... Each and every extension requires some extension so that it work normally and this daa file needs a poweriso which is nothing but a cd/dvd image maker...So the next time you face some problems with your extension just go to file extension library and get to know the information and master it...