- Open My Computer
- Click Tools and then Folder Options
Our computer is run by applications developed to carry out specific tasks that are carried out on data like documents, videos and images etc and saved with a specific file extension to the data type. That's to say, when you edit and save a Microsoft Word document, there is a .doc file extension after the file name. Therefore, we can know this file is opened with Microsoft Word software. With the file extension, our computer can know what program to use and open the file. Otherwise, Windows will ask you to help choose a program when it can not find the associated programs.