Fileinfo.net claims to be (and probably is) the definitive source on file extension information. FileInfo.net contains a searchable database of file extensions with detailed explanations of each file ...

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 ...

What Is a File System? A file system is a framework for organizing files in an operating system or external storage device. It lays out what information can be stored and what filenames, permissions, ...

A CSV (comma-separated values) file is a text file in which information is separated by commas. CSV files are most commonly encountered in spreadsheets and databases. You can use a CSV file to move ...