When you copy a file or folder to the same location on your local drive in Windows PC, a copy of that file or folder will be created with the – Copy extension added at the end of the file/folder name ...

A file extension is a suffix that is added to the end of a file name after a dot. It is usually two to four letters long. File extensions help Windows and other operating systems to know the standard ...

On computers and mobile devices, file extensions are the suffixes that apps append to filenames. When you see an item like "document.docx" for example, the .docx extension tells the computer and the ...