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Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Unsourced material may be challenged and removed. Find sources: "List of filename extensions" S–Z – news · newspapers · books · scholar · JSTOR ( August 2016 ) ( Learn how and when to remove this message )
The exact definition, giving the criteria for deciding what part of the file name is its extension, belongs to the rules of the specific file system used; usually the extension is the substring which follows the last occurrence, if any, of the dot character (example: txt is the extension of the filename readme.txt, and html the extension of ...
While MS-DOS and NT always treat the suffix after the last period in a file's name as its extension, in UNIX-like systems, the final period does not necessarily mean that the text after the last period is the file's extension. [1] Some file formats, such as .txt or .text, may be listed multiple times.
The size of these files no longer counts against the size of the mailbox used; by moving files from a server mailbox to .pst files, users can free storage space on their mailservers. [2] To use the .pst files from another location the user needs to be able to access the files directly over a network from their mail client.
This was a plain text file with simple key–value pairs (e.g. DEVICEHIGH=C:\DOS\ANSI.SYS) until MS-DOS 6, which introduced an INI-file style format. There was also a standard plain text batch file named AUTOEXEC.BAT that ran a series of commands on boot. Both these files were retained up to Windows 98SE, which still ran on top of MS-DOS.
An INF file (setup Information file) is an INI plain-text file used by Microsoft Windows-based operating systems for the installation of software and drivers. [1] INF files are most commonly used for installing device drivers for hardware components. [2] Windows includes the IExpress tool for the creation of INF-based installations.
A stream could reside in memory, within a file, within another stream, etc., depending on the implementation. Another important abstraction is that of a storage, represented by the interface IStorage. A storage is conceptually very similar to a directory on a file system. Storages can contain streams, as well as other storages.
In computing, ".bak" is a filename extension commonly used to signify a backup copy of a file. When a program is about to overwrite an existing file (for example, when the user saves the document they are working on), the program may first make a copy of the existing file, with .bak appended to the filename.