How Do I Get the File Extension

Open File Explorer; if you do not have an icon for this in the task bar; click Start, click Windows System, and then File Explorer.Click the View tab in File Explorer.Click the box next to File name extensions to see file extensions.Click the box next to Hidden items to see hidden files.

How do I get the file extension to show in a folder?

Click the View tab in the Folder Options dialog box. In Advanced Settings, select Show Hidden Files and Folders. Deselect Hide Extensions for Known File Types. Click OK.

How do I enable extensions in Windows 10?

1. Simply open File Explorer by double-clicking the program icon in the Task Bar. You can also double-click any folder.
2. Select the View tab as shown below.
3. Click the “File name extensions” check box to show file extensions. You can uncheck the box to hide file extensions.