Complete file extensions guides to master all your files

File extensions, also known as file types, usually are an identifier specified as a suffix to the name of a computer file. Windows file names have two parts – there’s the file’s name, then a period followed by the actual extension.

Most of the time, this is a three- or even four-letter abbreviation that represents the file type. There are countless file formats used today, so it is impossible to memorize all file extensions and the associated programs.

However, some of them are common – .doc for Microsoft Word files and .pdf for PDF files; .jpeg for JPEG images; .js for JavaScript files, or .cpp for C++ source code files.

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