在我们传统的印象中，要更改文件的扩展名，需要先通过系统设置将扩展名显示出来，然后更改。其实，如果用一些更名软件，可以不理会文件扩展名是否显示出来，直接在扩展名项目中填入新的扩展名，执行更名命令即可实现文件扩展名的批量更改(图5)。

What do you use for this stuff? Ok paying up to $10 but free would be best. I want something with regex for file name matching. I used a great tool for this back in the day, and it did all that stuff ...

If you want to rename all file extensions in a folder or sub-folder at once on Windows 11 or Windows 10 PC, here is how you can do that. You do not need to use a third-party application as you can get ...