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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.
Download as PDF; Printable version; In other projects Wikimedia Commons; ... Filename extension; List of file formats This page was last edited on 8 December ...
An open file format is a file format for storing digital data, defined by a published specification usually maintained by a standards organization, and which can be used and implemented by anyone. For example, an open format can be implemented by both proprietary and free and open source software , using the typical software licenses used by each.
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 ...
A PDF file may be encrypted, for security, in which case a password is needed to view or edit the contents. PDF 2.0 defines 256-bit AES encryption as the standard for PDF 2.0 files. The PDF Reference also defines ways that third parties can define their own encryption systems for PDF.
Visual Basic .Net source file Visual Basic .NET: VBOX [17] virtual machine settings file (in XML format) VirtualBox: VBOX-EXTPACK [18] VirtualBox extension package VirtualBox: VBPROJ: Visual Basic .Net project file Visual Basic .Net Express and Visual Studio 2003-2010 Project VBR: Visual Basic Custom Control file Visual Basic: VBS: VBScript ...
The mean and the standard deviation of a set of data are descriptive statistics usually reported together. In a certain sense, the standard deviation is a "natural" measure of statistical dispersion if the center of the data is measured about the mean. This is because the standard deviation from the mean is smaller than from any other point.
std, a common abbreviation for the standard library in many programming languages std, the C++ Standard Library namespace; std or STD means the standard deviation in many programming languages, etc. (more commonly σ, SD, std. dev., or std. deviation). Standard deviation is a measure of uncertainty or variation in data. STD Bus, a computer bus