Extension Copy is an explorer enhancements shell tool. It allows you to only copy the file with specific extension when you copy folder with windows explorer. [ www.softboy.net ] Extension Copy is an explorer enhancements shell tool. It allows you to only copy the file with specific extension when you copy folder with windows explorer. When you only want to copy some files with specific files in a folder instead of all the files, a dialog window will pop up and allow you select the file type after you press Ctrl + C or select Paste from the context menu. Same directory structure will be kept. . [ www.softboy.net ]