File Extensions mean file identifies for show which type file. some time its very hard to know that given file type how edit some windows user want to edit many file but they cant because they don’t know exist file type. in this article we will explain you how show File Extensions.
For that You need to follow these steps
Open Control Panel
> Appearance and Personalization.
> Folder Options or File Explorer Option
> Select View tab
> under Advance Settings
> See the option Hide extensions for known file types.
> Uncheck option then Apply and OK.
Then you can see file extensions.
In Windows 8.1
Via Windows File Explorer > Options
Change folder and search options.
In Windows 7
> open Explorer
> press Alt on your keyboard for Classic bar appear.
> click Tools
> Folder Options. Now follow the steps mentioned above.