Autocad Files, Types, Formats, Extensions

Autocad Files, Types, Formats, Extensions

Extension Name Extension Type Category Dev.Company File Format Description
.ADT File Extension ACT! Document Template Data Sage Software Unknown Template for creating a new word processing Document in ACT! contact management software; used for creating multiple Documents with a similar layout.
.ADI File Extension Active@ Disk Image Backup File Backup Active@ Data Recovery Software Binary Disk image created by Active@ Disk Image, a Backup and recovery program; may contain a Backup of a hard drive, media disc, or other external storage device; can be part of a split archive or a full Backup.
.ATC File Extension AutoCAD Tool Catalog File Settings Autodesk Binary Tool catalog file used by the AutoCAD design and Documentation CAD software; contains definitions for all of the tools in a user interface palette; used for storing tool configurations and customizing the AutoCAD workspace.
.ACB File Extension Adobe Photoshop Color Book File Settings Adobe Systems Binary Custom colors file used by Photoshop, an image-editing program; contains color records, which include color names, color codes, RGB and CMYK components, lightness, and chrominance; also contains header information for the book version, title, description, color count, and other file information.
.AWS File Extension AutoCAD Work Space File Settings Autodesk XML XML settings file used by AutoCAD, a 3D design and Documentation application; stores the visibility and location of user interface elements, such as tool palettes; used for customizing and personalizing the AutoCAD workspace.
.ARG File Extension AutoCAD Profile Settings Autodesk Unknown Settings File used by AutoCAD, a 2D and 3D CAD drafting application; contains backed up user profile information (application options data) that was stored in the system registry; can be exported and imported to transfer settings between computers; can also be migrated between versions of AutoCAD.
.AC$ File Extension AutoCAD Temporary File Misc Autodesk Unknown Temporary File generated by AutoCAD, a 2D/3D Drawing and design program; contains information used by various commands, including "UNDO" and "HIDDEN LINES."
.CTB File Extension AutoCAD Color-Based Plot Style File Settings Autodesk Binary File used by AutoCAD, a CAD program used for 2D and 3D Drawing; contains color-based plot styles, or mappings of colors to layers of objects; used to attach color and display settings to design objects.
.CAS File Extension Total War Model File 3D Image The Creative Assembly Binary 3D Model file used by some Games in the Total War strategy Game series; contains models for buildings, units, and other Game objects; saved with .TGA and .DDS images that are used for texturing the models.
.CHX File Extension AutoCAD Standards Check File Settings Autodesk Unknown Verification file used by the Batch Standards Checker component of AutoCAD; contains references to a list of .DWS files, which store drawing standards that must be conformed to; also contains configuration information for reporting the results.
.CUIX File Extension AutoCAD Custom User Interface File Settings Autodesk Text Custom workspace file created by the Custom User Interface (CUI) Editor component of AutoCAD; stores window and palette settings as well as toolbar and menu configurations; may also include custom images; used for loading full or partial custom workspace layouts during a drawing session.
.CUI File Extension Autodesk Custom Workspace File Settings Autodesk Unknown Saves workspace settings for AutoCAD architectural drawing and engineering software as well as for 3ds Max 3D Modeling software; contains toolbar and menu configuration settings as well as the layout for windows and palettes; used for setting up the workspace for different modeling, rendering, and Animation tasks.
.CUS File Extension AutoCAD Custom Dictionary File Settings Autodesk Text Dictionary file used by AutoCAD, a CAD application used for architectural design and Documentation; contains a list of words separated by line breaks in a Plain Text format; allows users to store a list of spelling exceptions so that the AutoCAD spell checker does not report errors for certain words; commonly contains company names or business acronyms.
.DXF File Extension Drawing Exchange Format File CAD Autodesk Text Data format developed by Autodesk and used for CAD (computer-aided design) vector image files, such as AutoCAD Documents; similar to the .DWG format, but is more compatible with other programs since it is ASCII (text) based.
.DGN File Extension MicroStation Design File CAD Bentley Systems Unknown 2D/3D Drawing format used by MicroStation construction design software; based on either the Intergraph Standard File Format (ISFF) or the newer V8 DGN standard; can be converted to the more universal .DWG format by AutoCAD LDT.
.DXE File Extension AutoCAD Data Extraction Template CAD Autodesk Binary Template file used by AutoCAD, a 3D CAD application used for architectural drawing; contains properties that to be extracted from drawn objects; allows users to extract drawing data with the same properties from multiple Drawings.
.DWT File Extension Dreamweaver Web Page Template Web Adobe Systems Text Template for creating multiple Web pages in Dreamweaver, a popular Web development program; editable regions within the template can be defined by the user; changes to the non-editable regions within the template affect all pages designed from the template.
.DXX File Extension AutoCAD Drawing Interchange Attribute File CAD Autodesk Binary Data File created by AutoCAD, an application used for creating 3D design Drawings; may contain drawing block reference, attribute, and end-of-sequence objects; can only store a subset of information that can be saved in a .DXF file.
.DSD File Extension AutoCAD Drawing Set Description File Settings Autodesk Text Properties file used by AutoCAD, a CAD productivity application; contains settings for publishing a drawing to a .DWF file or to another plotter format; used for saving reusable publishing settings for different types of output.
.DCT File Extension Dictionary File Misc N/A Unknown Data File used by various dictionary, translation, or word Processing Applications; typically contains a list of words and may also include definition or translation information; often used for spell-checking and may be available in different Languages.
.DXB File Extension Drawing Exchange Binary Vector Image Autodesk Binary Vector image format used by Autodesk AutoCAD; stores 3D CAD Drawings created by AutoCAD, such as building and landscape designs.
.DWL2 File Extension AutoCAD Drawing Lock File Misc Autodesk Unknown Lock file created by AutoCAD, a program used to design 2D and 3D designs; stores lock information when a drawing (.DWG file) is opened in the program; prevents simultaneous access by different users to a drawing, which may cause the file to become corrupted.
.ERR File Extension Error Log File Text N/A Text Text File containing error messages generated by a program; may be written as a program loads, executes, or closes; often used by software developers when testing or profiling programs.
.EZP File Extension AutoCAD Ecscad Project Backup File CAD Autodesk Zip CAD project created by AutoCAD Ecscad, a program used for designing electrical circuits; stores a Backup of a CAD project in a compressed .ZIP format; can be used for archiving projects on Backup media such as CDs and Backup drives.
.EZC File Extension AutoCAD Ecscad Components Backup File CAD Autodesk Zip File used by Ecscad AutoCAD, a program used for designing electric circuits; saves a Backup of library components, which contain symbols and circuit information used to build schematics; saved in a compressed .ZIP format.
.EKB File Extension ZMC Visual Tablet Data Data Zak Morris Company Unknown Application data used by VisualTablet, a plug-in for AutoCAD that adds a Graphical User Interface designed to enhance the productivity of digitizer template users; contains the necessary data to run the application.
.FMP File Extension 123 Flash Menu Project Web Dreamingsoft Unknown Drop-down menu created with 123 Flash Menu, a Flash-based Web menu creation program; includes the menu style, fonts, colors, dimensions, sounds, Animations, etc; can be exported as a standard Flash (.SWF) file that can be inserted into a Web page.
.FAS File Extension Compiled Fast-Load AutoLISP File Executable Autodesk Binary Compiled script written in AutoLISP, a variation of the LISP programming Language used specifically for the extension of AutoCAD software; often used for creating macros that automate common processes within AutoCAD; can be used for distributing utilities that add new features to the software.
.FBK File Extension Microsoft Dynamics NAV Backup File Backup Microsoft Unknown Backup of a Database created with Microsoft Dynamics NAV; contains financial data used for business management and Analysis; can be used to restore data if the primary Database (.FDB) file becomes corrupted or is deleted.
.FLX File Extension FLIC Animation Video N/A Unknown Slight variation on the standard FLC Movie/Animation format; uses existing parts of previous frames to allow for faster transition between frames
.FDC File Extension AutoCAD Field Catalog File Settings Autodesk Unknown s file used by AutoCAD, a program that allows engineers and designers to create 3D Drawings; contains definitions for application fields; used for displaying information within the AutoCAD user interface.
.HDX File Extension Delphi MultiHelp Index File Misc Autodesk Binary Help Documentation file used by older versions of AutoCAD design software; uses the filename ACAD.HDX and supplies an index for an associated ACAD.HLP (.HLP) file; not used by recent versions of AutoCAD.
.IAM File Extension Inventor Assembly File CAD Autodesk Binary 3D CAD Assembly created with Autodesk Inventor; used for designing 3D digital prototypes and integrating 2D AutoCAD Documents into a 3D environment; contains an Assembly of many parts (.IPT) files.
.LIN File Extension AutoCAD Linetype File CAD Autodesk Unknown Line type definition (also called a "linetype" or "line style") that defines the paths of a vector-based object used by AutoCAD; stores Shapes information in a text-based format.
.MNR File Extension AutoCAD Menu Resource File Raster Image Autodesk Binary Image archive used by AutoCAD, a 2D and 3D design application; contains Bitmap Images">Bitmap Images that are displayed by user interface elements in AutoCAD; used for storing custom graphics that can be displayed in the AutoCAD workspace.
.MNU File Extension AutoCAD Interface Layout File Settings Autodesk Text Interface layout definition file used by AutoCAD 2D and 3D CAD software as well as 3ds Max 3D Modeling software; contains ASCII text definitions that specify the display properties of user interface elements; used for customizing the layout of the user workspace.
.MNS File Extension AutoCAD Interface Settings File Settings Autodesk Text User interface settings file used by AutoCAD, a 2D and 3D design and Documentation tool; stores ASCII text properties that define how user interface elements are displayed; can be used for customizing the AutoCAD workspace layout.
.MNC File Extension My Notes Center Notebook Data BC Unknown Notebook file used by My Notes Center, a personal information manager with advanced encryption options; stores Notes and other information created with My Notes Center in a proprietary binary format.
.MVI File Extension AutoCAD Movie Command File Misc Autodesk Unknown Contains instructions and commands for a Movie or Animation created with AutoCAD, a 3D-modeling program; generated by AutoFlix, an Animation add-on for early versions of AutoCAD.
.PLT File Extension AutoCAD Plotter Document Vector Image N/A Unknown Vector-based plotter file created by AutoCAD drawing software; can be printed using a plotter, which prints images using lines instead of dots; based on the .HPGL format.
.PGP File Extension AutoCAD Program Parameters File Settings Autodesk Text File used by AutoCAD, an engineering design and Documentation CAD application; contains external command definitions, which allow users to run custom commands in AutoCAD; can be used for running external programs and Windows commands through the AutoCAD interface; also used for defining aliases, or shortcuts, for commands with verbose syntax.
.PMP File Extension AutoCAD Plot Model Parameter File Settings Autodesk Binary File used by AutoCAD, a CAD program used for creating designs; contains custom configuration information for a .PC3 file, including plotter calibration data and paper size; used to store common plotter calibration settings for use with multiple PC3 files.
.PC3 File Extension AutoCAD Plotter Configuration File Settings Autodesk Binary File created by AutoCAD, a CAD program used to create 2D and 3D designs; contains plotter properties, such as color depth, media type, and print quality; used to configure specific plotter settings and save them for later use.
.PAT File Extension Pattern File Raster Image Adobe Systems Binary Bitmap image used as a pattern that can be imported into multiple graphics programs; typically a square file that may be 8x8 pixels to 256x256 pixels in size; repeats to fill an area with the pattern; often used for creating a textured background.
.PWT File Extension AutoCAD Publish To Web Template CAD Autodesk Unknown Drawing publishing template created by AutoCAD, a 2D and 3D design and drawing application; stores settings for publishing a drawing (.DWG file) to a Web HTML format; includes the properties for images, text, hyperlinks, colors, Web page titles, and video Animations; used for publishing Web Drawings with the same formatting.
.PSS File Extension PlayStation 2 Game Video File Game Sony Binary Video File used by Games for the PlayStation 2 console; contains audio and video data and is used for playing in-Game cutscenes and other Movies; may be converted to more common video types, or split into separate audio and video files using several utilities.
.PTW File Extension AutoCAD Publish To Web File Web Autodesk Unknown Settings File used by AutoCAD, a CAD application used for 3D design and Documentation; stores properties for a drawing that has been published to a Web format; placed alongside the published HTML content so that the Web Publishing Wizard can track what has been published.
.SHX File Extension AutoCAD Compiled Shape File CAD Autodesk Binary Compiled shape file created by AutoCAD, a 2D and 3D design and engineering application; may contain shape definitions as well as font definitions for displaying custom text; supports many Type 1 PostScript fonts; used for storing smaller building blocks and fonts that are frequently inserted in Drawings.
.STB File Extension AutoCAD Plot Style Table File Settings Autodesk Binary File used by AutoCAD, a CAD program used for 2D and 3D Drawing; contains plot styles, or mappings of colors and line weights to drawing objects; stores properties such as color, dither, grayscale, pen number, line weight, fill style, and line start and end styles; used to attach reusable display properties to design objects.
.SLD File Extension Styled Layer Descriptor File GIS Open Geospatial Consortium XML GIS file created in the Styled Layer Descriptor format, an XML Format">XML Format used for specifying the display of map layers; can describe both raster and vector data and may include colors, labels, fonts, legend specifications, and other information.
.SV$ File Extension AutoCAD Automated Backup File Backup Autodesk Binary Backup file created by AutoCAD 2D and 3D design software; stores a Backup of the current working design (.DWG file) and is created automatically by the software; automatically deleted when the software successfully shuts down.
.SET File Extension Alpha Five Set Data Dictionary File Developer Alpha Software Unknown Set Dictionary file created by Alpha Five, an IDE that enables users to develop Web, desktop, and mobile applications; contains a list of all the forms attached to the set and a record entry for every linking definition; created along with .SEM and .SEX linked set files.
.SLB File Extension AutoCAD Slide Library Misc Autodesk Binary Slide library created by the "slidelib" utility, which is included with the AutoCAD software installation; contains a collection of slides (.SLD) files; used to display Slideshows of CAD designs.
.UNT File Extension AutoCAD Unit Definition File CAD Autodesk Text Settings File used by AutoCAD, a CAD productivity application used for drafting 2D and 3D designs; contains unit definitions and scales, such as conversions between miles and kilometers or Fahrenheit and Celsius; ensures that the proper units, scales, and unit conversions are used within a drawing.
.VLX File Extension Compiled AutoLISP File Executable Autodesk Unknown Compiled AutoLISP script written in the Virtual LISP Language; used for creating macros that can be run within AutoCAD; similar to a .FAS file, but contains a multiple AutoLISP routines.
.WDP File Extension Windev Project File Developer PC SOFT Unknown Developer project created by WinDev, a program used for building Windows and mobile applications; can include multiple program windows (.WDW or .WPW files), source code, and build information for the application; can be compiled into a final executable program when complete.
.XTP File Extension xTime Project Document Data adnx Unknown Project accessed by xPlan, a project management application; similar to the .PJ2 and .PJM file; created by the app4mac xTime Project program, which became xPlan; contains project data input such as the budget, project tasks, days off, and task duration.
.BLK File Extension AutoCAD Block Template File CAD Autodesk Unknown Attribute extraction template used by AutoCAD, a 2D and 3D CAD design and Documentation application; stores selected drawing elements used for publishing a drawing to a .PDF, .DWF, or .DWFX format; specifically stores the drawing blocks and their properties.
.BPL File Extension Borland Package Library Developer Embarcadero Technologies Binary Dynamic-link library (DLL) used by Delphi, a software development application; may contain a run-time package for compiled applications, or may store a component that extends the Delphi IDE; can be shared across multiple projects.
.BP2 File Extension AutoCAD Batch Plot File Misc N/A Unknown Batch plotting lists saved from AutoCAD Release 14 or previous versions
.BP3 File Extension AutoCAD Batch Plot File Misc N/A Unknown Batch plotting lists saved from AutoCAD 2000, 2000i, 2002, or 2004
.BK1 File Extension Autodesk Backup File Backup Autodesk Binary Backup file created by Autodesk products, including AutoCAD Mechanical, Mechanical Desktop, and AutoCAD Map; stores a .BAK file that has been renamed with the ".bk1" extension; renamed when the Autodesk program terminates unexpectedly.
.DWG File Extension AutoCAD Drawing Database CAD Autodesk Binary A DWG file is a Database of 2D or 3D Drawings created with AutoCAD, a professional CAD program. It contains vector image data and metadata that describes the contents of the file. DWG files are related to .DXF files, which are ASCII versions of DWG files.
.ARX File Extension AutoCAD Runtime Extension File Plugin Autodesk Binary Extension file created for AutoCAD, a design and engineering application for 2D and 3D products; contains an application component written using Autodesks ObjectARX, an object-oriented API that allows developers to customize and extend AutoCAD using C++, C#, and VB.NET program code.
.ACTM File Extension AutoCAD Action Macro File Executable Autodesk Unknown Macro file created by AutoCAD, a 2D and 3D design and engineering application; contains a sequence of actions recorded using AutoCADs Action Recorder; may store recorded command line entries as well as selections from toolbars and menus.
.CDC File Extension AutoCAD DesignCenter Preview Cache File Raster Image Autodesk Binary Icon preview created by the AutoCADs DesignCenter tool palette; stores a small preview image that was generated when the user browsed a drawing directory using the Large Icon view; used for caching thumbnail images so that AutoCAD does not need to regenerate previews each time the user browses drawings.
.DBQ File Extension AutoCAD Query Set CAD Autodesk Unknown Set of SQL queries saved by AutoCAD, a professional 3D CAD application; used to access records from a database table; typically created using the Query Editor, which can be accessed through the dbConnect Manager.
.MNL File Extension AutoCAD Menu LISP File Misc Autodesk Text User interface file used by AutoCAD, an engineering and architecting design program; contains expressions that manipulate the user interface elements; written in Autodesks proprietary AutoLISP language, which is based on LISP.

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