By default, Windows hides file extensions. For many reasons, you may want to view these file extensions so that you know at a glance what type of files you’re looking at.
Side note: What’s a file extension? A file extension is a period followed by short abbreviation (usually three or four letters) at the end of a file name. It indicates the type of file.
Some examples: “.docx” is a modern Microsoft Word document, “.txt” is a plain text file, and “.jpg” is a common image type. There are numerous file extensions, many of them only used by specialized programs.
So if you don’t want to dig into a file’s properties to find out if it’s a .jpg image or a .png file, let’s show those file extensions right away in the file name.
In Windows 10:
- In the Windows Search Bar, type File Explorer Options and choose the Control Panel result.
- Select the View tab.
- Scroll down and uncheck the box next to “Hide extension for known file types”.
- Click Apply and then OK.
And now you will see the full file names!