What Are the File Extensions of AutoCAD?
AutoCAD is a widely used computer-aided design (CAD) software that enables architects, engineers, and designers to create precise 2D and 3D drawings. As an AutoCAD user, it is essential to understand the different file extensions associated with this powerful tool.
These file extensions determine how your drawings are saved and stored. Let’s dive into the various file extensions used in AutoCAD:
DWG (Drawing)
The DWG file extension stands for “drawing” and is the default file format used by AutoCAD for saving both 2D and 3D designs. It stores all the geometrical data, layer information, text styles, dimensions, and other drawing elements. DWG files are widely compatible across different versions of AutoCAD.
DXF (Drawing Exchange Format)
The DXF file extension represents the “drawing exchange format.” It is a file format developed by Autodesk to enable interoperability between different CAD software applications. DXF files are ASCII-based and contain information about drawings that can be shared across various platforms.
DWT (Drawing Template)
A DWT file serves as a template for creating new drawings in AutoCAD. It contains predefined settings such as units of measurement, layers, text styles, dimension styles, and other customizations required for starting a new project.
DWS (Drawing Standards)
The DWS file extension stands for “drawing standards.” These files ensure that your drawing adheres to specific standards defined by organizations or industry regulations. They contain rules and checks related to layer properties, line types, text styles, dimensions, and other elements to maintain consistency across multiple drawings.
SV$ (Automatic Save Files)
AutoCAD automatically creates SV$ files as backups during the drawing process. These files are created at regular intervals and can help recover unsaved or accidentally closed drawings in case of a system crash or power failure.
BAK (Backup)
The BAK file extension represents backup files created by AutoCAD. These files are generated when you save your drawing, and they store a copy of the previous version. BAK files act as an additional safety net in case you need to revert to an earlier version of your design.
PAT (Hatch Pattern)
PAT files contain hatch patterns used for filling enclosed areas in AutoCAD drawings. These patterns define how lines are repeated to create various textures, such as bricks, tiles, or grass. PAT files can be customized or imported from external sources to match specific design requirements.
CTB (Color-Based Plot Style)
The CTB file extension is associated with color-based plot style files in AutoCAD. These files define how colors are plotted on paper or other output devices based on their assigned object properties. CTB files enable consistent printing across different printers and plotters.
STB (Named Plot Style)
Unlike CTB files, STB (named plot style) files define plot styles based on named objects rather than colors. This allows for greater flexibility and ease of use when assigning different line weights, linetypes, and plot settings to layers and objects within your drawing.
In conclusion,
Understanding the various file extensions used in AutoCAD is crucial for efficient collaboration and seamless sharing of drawings across different platforms and software applications. Whether you’re working with DWG, DXF, DWT, DWS, SV$, BAK, PAT, CTB, or STB files, being familiar with their purpose will enhance your AutoCAD experience and improve your workflow.