How can i change a file extension

If you need to change the extension of all files of a certain type in a folder, you need to open the command prompt. From the Start menu, search cmd and open the command prompt of Windows If we need to enter a specific folder on the command prompt, we should instead right-click on that folder while holding down the Shift key and then select Open command prompt from here or Open Powershell window from here. The commands to use to change extension are the following: REN foo.

Usually, it is not necessary to change file extensions, except in some specific cases, such as: — If you write programming code using Windows Notepad, you can change the.

Finally, remember that it is possible to associate a program with a particular file depending on its extension. We have seen how to do this in the guide on how to change the program to open a file in Windows.

Save my name, email, and website in this browser for the next time I comment. Pc Guide. In each operating system, various types of files, for example, images, documents, videos, etc. The files are distinguished from each other only by the icon with which they are represented in folders and on the desktop, an icon that recalls the program that is opened if they are clicked. You'll notice that the file does not appear to have an extension—it's just called MyDocument.

That's because in this example Windows is set to hide extension names. Uncheck the box titled "Hide extensions for known file types" like so:. Right-click the file name and select Rename or left-click and hold down the button for one second.

Enter the new extension like so:. After entering the new extension, hit the Enter return key. Windows will give you a warning that the file may not work properly.

This is quite safe—remember that you can restore the original extension if anything goes wrong. It's also possible that you might get another message telling you that the file is "read-only". Many cameras save image files with a capitalised extension, such as.

JPG or magnolia. JPG images does just that. In Windows 7, to change a file extension, first, make sure file extensions are visible using the steps above, then:.

Things get even worse if you want to change capitalised extensions on a group of files: Windows 7 refuses to do it. For example, if you have three files named 1. JPG, 2. JPG and 3. JPG, if you select all the files and rename the first one platypus. JPG, platypus 2. JPG and platypus 3. The extension pigheadedly maintains its uppercase lettering.