How to change a file type or file extension in Windows 11

In the digital landscape, encountering files with incorrect extensions can be a common frustration. For instance, downloading a PDF that appears as a text file (TXT) or even lacks an extension altogether can disrupt workflow. Fortunately, Windows 11 offers a straightforward solution to rectify this issue, allowing users to change file extensions with just a few clicks.

File Extension vs File Type

Understanding the distinction between file extensions and file types is essential. A file extension, such as .png or .mp4, is the suffix at the end of a file name that indicates how the operating system should handle the file. Conversely, the file type refers to the actual format of the file. For example, an mp4 is a video file type, while .mp4 is its corresponding file extension. Although these should typically align, discrepancies can occur, necessitating a change in the file extension.

Why might one need to change a file extension? Think of file extensions as labels for your files. Occasionally, files may be assigned incorrect extensions upon download. This mislabeling does not render the file unusable; it merely requires a new label for proper recognition by your computer.

How to View File Extensions in File Explorer

Before making any changes, you must first ensure that file extensions are visible. Here’s how:

1. Open File Explorer (Win+E) and navigate to the folder containing your files.
2. At the top of the window, click on View and select Show > File name extensions.
3. You will now see the extensions displayed at the end of each file name.

How to Change a File Extension

Once file extensions are visible, changing them is a simple process:

1. Open File Explorer (Win+E) and locate the file whose extension you wish to change.
2. Highlight the file and click on the file name to rename it.
3. Delete the old extension and add a new extension.
4. A prompt will appear asking for confirmation; click OK. Your file will now open in the appropriate application.

How to Change the File Extension for Multiple Files at Once

If you have a batch of files requiring new extensions, the Command Prompt can facilitate this process efficiently. Ensure that your folder path is accurate to avoid unintended changes.

1. Open File Explorer (Win+E) and navigate to the relevant folder.
2. Click on the address bar and type CMD.
3. In the Command Prompt, type:

   ren .png .jpg

   (replace .png with the current extension and .jpg with the desired extension).

4. Press Enter, and all files in the selected folder will have their extensions updated.

How to Change File Types in Windows 11

While altering file extensions is straightforward, changing file types or formats requires a conversion tool. For instance, to convert an image file from PNG to JPG, one might use an online converter like iLoveIMG:

1. Search for and open the online converter iLoveIMG.
2. Select whether you want to convert to JPG or convert from JPG.
3. Click the Select Images button or drag and drop files into the browser.
4. Once all files are added, click Convert to JPG.
5. After conversion, download the files if the download does not start automatically.

It’s wise to review each converted image for any issues before deleting the originals, ensuring a smooth transition to the new file format.