How to modify the file format suffix under win7 system

            Some people familiar with the computer will find that there will be a suffix with some letters after the file name. For example, the suffix of the word file is docx. What do these letters represent? In fact, they are all file formats, so this is also available to everyone. Tip, in the future we want to modify the file format, just modify the suffix of the file name directly, it is very convenient. However, we upgraded to win7 Ultimate's friends found that the above method does not work, because the files in win7 computer do not have a suffix, then what should we do? The following small series for those who use win7 system how to modify the file format.
1. First of all, let's open a folder in the win7 Ultimate computer, feel free to open it, no matter whether there are any files. After that, in the open folder window, we click on the organization-folder option at the top of the window.
2. After that, we can open a folder option window, as shown in the figure below. Let's switch the interface to view this column in the open folder window, then find the "hidden or known extension" option in the list of advanced settings below, we will remove the checkmark in front of this option. Then click on Apply - OK at the bottom of the window.
There is no problem that can't be solved. Although the win7 system has stricter format for files, it is still solved through the above methods, so it is helpful to explore more. Try it now!