Answer:
It's not only a Windows 7 issue; on other operating systems like Win XP, Win 8.1, or Win 10, file extensions may be hidden due to user settings.
Download the setup file for Win 7
Download and Install the Trial Version of Windows 10
To reveal file extensions on Windows in general and in Win 7, follow the instructions below:
Step 1: Open the Folder Options dialog box by:
* In Windows XP: Open Windows Explorer (or open My Computer), on the toolbar, click Tools --> Folder Options
* In Windows 7: Open Windows Explorer --> Organize --> Folder and search options
Step 2: In the Folder Options dialog box, go to the View tab, uncheck the 'Hide extensions for file types' option to display file extensions on your computer. Click OK to save the settings.
The file extensions are now visible as shown in the image below.
With the above method, you can successfully reveal the file extensions on your computer. Storing files is crucial, and sometimes it's not about the settings but viruses hiding your files. However, displaying files hidden by viruses is also easily done, so there's no need to worry.