File is a collection of data or information on your computer or any storage drive that is identified by a unique name. Almost all information on the device is a file. It can be program, image, video, song or document will all be saved in the form of a file. A computer file is made up of a name, which creates the identity, an extension which informs the OS and other associated programs about the type of the file.
File extension is the second part of the name of a computer file, which tells you the type of that file. It starts with the period (.) and is comprised of 3 letters that too in small letters. It specifies the kind of data stored in the file. For example, .doc is an extension for word documents, .xls indicates the excel files, .png indicates image files etc.
File Size: File size is the numerical value that expresses the number of bytes, which indicates how much storage is associated with the file.
Operations performed on files
Files stored on your computer can be moved, created, modified, shrunk, grown, read, deleted etc. some of the common operations performed on a file are:
Types of files
File types are determined by the content present in the file and which is then identified by the file extension. There are many different types of files: data files, text files, program files, directory files, and so on. Different types of files store different types of information. For example, program files store programs, whereas text files contain text data. some of the general file types are as listed below:
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