Right-click on the file while pressing and holding the Shift key on your keyboard, and then select Open command window here from the context menu. You can change file extension for multiple files in one folder at once simply with the command prompt. If you need to change the filename extension for multiple or all files in one folder, it would be troublesome and time-consuming to do that one by one. Part 2: Change file extension for multiple files at once in Windows 10 Step 4: When you are prompted with the warning dialog that says 'If you change a file name extension, the file might become unusable.', click Yes to confirm that. Step 3: Select the extension to highlight it, type another extension, and press Enter to confirm it. Step 2: Click the file for which you want to change the file extension to select it, and then click F2 to make the filename and extension editable. Step 1: Show file name extensions if you haven’t done so.

Part 1: Change file extension for one file in Windows 10 How to change file extension for multiple files.How to change file extension for one file.If you want to change a file name extension in Windows 10, or if you wonder how to change file extension for multiple or all files in one folder, follow this guide. Change File Extension for One or Multiple Files in Windows 10