Each file has its own extension. It is thanks to him that the operating system knows which program to use to open this file. In operating systems, some files have their extension at the end of their names. For example, in a Microsoft Office text document, DOC is written at the end of the file name - this is the file extension. There is a need to hide the file extension. Perhaps someone does not want its extension displayed at the end of the file name, or it is necessary to hide the file type.
Necessary
Windows computer
Instructions
Step 1
You need to hide the file extension depending on the situation. If you need to make sure that no one knows what kind of file it is, you can simply rename its extension. This can be done without problems if you are using Windows XP or earlier.
Step 2
Right-click on the file whose extension you want to hide and select "Rename" from the context menu. Rename exactly the extension. It is written immediately after the name of the file itself and only in Latin letters. You can specify any symbols as an extension. Then the system will recognize this file as unknown.
Step 3
This file can no longer be opened in the usual way. To open it, right-click on the file and select "Open with" in the context menu and select the program to open. If the extension was hidden in a text file, then, of course, you can open the file using Microsoft Office.
Step 4
You can return the correct file extension at any time. After you rename the file extension back, accordingly, you do not need to select a program to open it, the file will again be opened by the operating system automatically.
Step 5
If you just need to hide the file extension so that it is not displayed, this method is for you. Click on "Start" - "All Programs" - "Accessories". Select "Command Prompt" from the standard programs. At the command prompt, enter "rundll32.exe shell32.dll, Options_RunDLL 0".
Step 6
The Folder Options window appears. Select the "View" tab. In the "Advanced Options" window, find the item "Hide protected system files". Check this box. Nearby is the item "Hide extension for registered file types". Also check this item. Then click OK. Now the operating system will not display the file extension.
