In most cases, the majority of the file extensions you encounter on your computer are already associated with a program or protocol. When a file extension is not associated with a program, however, ...

BearPup sometimes wants to open a file in one program, and other times open it in another. He asked the Answer Line forum for an easy way to do this. Windows uses a file’s extension–the part of the ...

Ever got stuck with a file that has some mysterious extension? Where no matter how much you try, the Jigsaw puzzle doesn’t seem to fit together? So, for instance, if the file has the extension ...

Red Eye Rose received a file with a strange extension. She doesn’t know into what program she should load it. Neither does Windows. I doubt that anyone knows all of the file extensions used since the ...

A .CWK file is an extension applied to Apple Works files. It applies to spreadsheet, presentation or word-processing files created with Apple Works. With the advent of the Lion Mac operating system, ...