Also, you can replace *.txt (the first variable) with just * if you want to rename all extensions for all files. You can replace *.txt and *.xml with any other extensions in the commands above. The following command uses a loop that iterates through subfolders (one level deep) and changes all file extensions from *.txt to *.xml:įor /d %x in (*) do pushd %x & ren *.txt *.xml & popd Renaming files in subfolders (or subdirectories) is a more complex task that requires additional syntax. NOTE: If your files have different extensions, or they do not have an extension at all and you would like to add an extension to them, you can use this command instead: The files are all renamed from *.txt to *.xml: The asterisk (*) in the example above serves as a wildcard character, which is used to rename all files ending in ".txt".Ĥ. The ren command (short for "rename") provides a simple way to rename one or more files using the Command Prompt. Type the following command, which will rename all *.txt files in the current folder to *.xml files:
RENAME FILE EXTENSIONS IN BULK WINDOWS
For example, you would type " cd Desktop\XML Docs" to navigate to a folder named " XML Docs" on the Windows desktop.ģ. Navigate to the directory containing the files to rename using the " cd" command ("cd" stands for "change directory"). You can also type " cmd" and press Enter in the Windows Start Menu text field.Ģ. To do this, choose Start → Accessories → Command Prompt. In order to batch rename file extensions, you will first need to open the Windows Command Prompt. Files in a Single Folderīelow is an example folder with several. Fortunately, you can speed up the process through automation by following the steps below.
While this method works fine for a small number of files, manually editing a large number of filenames can take a long time. Just highlight the filename in Windows Explorer and type a new extension after the dot. Changing a single file extension in Windows is simple.
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