Mac OS 9 identifies files by two characteristics: Type and Creator. Type tells whether a file is an application, a document, an extension or whatever. If it is a document, Type will further identify ...

A file extensions is a suffix to the filename that's used to indicate what software or program it's associated with. If the required software to read the file is ...

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 ...

One of the easiest ways to render your computer unusable is to mess with the operating system’s files and settings–one accidental deletion of a single file can ...